Meaning: 'Solve' means to find a solution to a problem or challenge.

Wrong options:

• try: The verb 'try' implies an attempt rather than a definitive action, which does not convey the certainty needed in this context.
• make: The verb 'make' does not directly relate to addressing a problem and lacks the specificity of 'solve.'
• fund: The verb 'fund' refers to providing financial support, which does not fit the context of resolving a market problem.
• help: The verb 'help' suggests assistance but does not imply a direct solution to the problem at hand.
• creating: The gerund 'creating' does not fit grammatically after 'can' and does not convey the intended meaning of resolving the issue.
• done: The past participle 'done' does not fit the structure of the sentence as it does not serve as an action that markets can perform.

Correct answer: created

Explanation: The word 'created' is the past participle form that fits the passive construction of the sentence, indicating that demand must be established for companies to respond.

Meaning: 'Created' means to bring something into existence or to establish it.

Wrong options:

• creating: The gerund 'creating' does not fit the passive structure required here, as it does not indicate a completed action.
• made: The past tense 'made' does not fit the context of establishing demand, as it implies a different action.
• try: The verb 'try' does not relate to the establishment of demand and does not fit grammatically in this context.
• solve: The verb 'solve' does not pertain to the creation of demand and is unrelated to this part of the sentence.
• done: The past participle 'done' does not fit the context of demand creation and is not relevant here.
• help: The verb 'help' does not convey the action of establishing demand and does not fit grammatically.

Correct answer: done

Explanation: The word 'done' is the past participle that fits the passive construction of the sentence, indicating that the work must be completed by companies.

Meaning: 'Done' means to have completed or finished a task or action.

Wrong options:

• try: The verb 'try' suggests an attempt rather than completion, which does not fit the context of the sentence.
• make: The verb 'make' does not convey the idea of completing work and is not appropriate in this context.
• solve: The verb 'solve' does not relate to the completion of work and does not fit grammatically here.
• help: The verb 'help' does not imply completion and is not relevant to the context of work being finished.
• fund: The verb 'fund' refers to providing financial support, which does not fit the context of completing work.
• created: The past participle 'created' does not fit the context of completing work and is unrelated to this part of the sentence.

Correct answer: help

Explanation: The verb 'help' fits grammatically and contextually as it indicates the action that governments can take to assist in the market problem.

Meaning: 'Help' means to assist or provide support to someone or something.

Wrong options:

• try: The verb 'try' implies an attempt rather than a definitive action, which does not convey the intended meaning of assistance.
• make: The verb 'make' does not convey the idea of providing support and is not appropriate in this context.
• solve: The verb 'solve' suggests a direct resolution rather than assistance, which does not fit the context of government actions.
• fund: The verb 'fund' refers specifically to financial support, which is a narrower action than the general assistance implied by 'help.'
• created: The past participle 'created' does not fit the context of providing assistance and is unrelated to this part of the sentence.
• done: The past participle 'done' does not fit the context of government actions and is not relevant here.

Correct answer: fund

Explanation: The verb 'fund' fits grammatically as it indicates the action of providing financial resources, which is a specific way governments can assist in research.

Meaning: 'Fund' means to provide financial support for a project or initiative.

Wrong options:

• try: The verb 'try' implies an attempt rather than a definitive action, which does not fit the context of providing financial support.
• help: The verb 'help' is too vague and does not specifically indicate the action of providing financial resources.
• solve: The verb 'solve' does not relate to the financial aspect of supporting research and is not appropriate here.
• make: The verb 'make' does not convey the idea of providing financial support and is not relevant in this context.
• created: The past participle 'created' does not fit the context of funding research and is unrelated to this part of the sentence.
• done: The past participle 'done' does not fit the context of providing financial support and is not relevant here.