Question

Choose the option that best corrects the sentence at the underlined point:
They know how catch a butterfly.

• A. catching
• B. to catch
• C. can catch
• D. NO CHANGE

Answer 1

Answer: (B)

to catch

Choice B is correct as it has a preposition 'to' before the verb 'catch'. Choice A is wrong as the tense is wrong. Choice C is wrong the 'can catch' is wrong tense. Choice D is wrong as the verb cannot exist without the preposition'to'. Choice B is correct.