Writing Task 2. Choose the correct infinitive or -ing forms 1. What can I to reduce air pollution 2. Why have you stopped me questions? the fire out but without success. 3. I tried 4. You could money to a charity 5. Mark needed our help, and we promised what we could. • A)to do B) do C)doing A) to ask B) ask Casking A) to put B) put C) putting A) donate B) to donate C) donating A) to do B) do C)doing

Here are the correct infinitive or -ing forms for each sentence:

1. What can I do to reduce air pollution?
   (Correct answer: B) do)

2. Why have you stopped asking me questions?
   (Correct answer: C) asking)

3. I tried to put the fire out but without success.
   (Correct answer: A) to put)

4. You could donate money to a charity.
   (Correct answer: A) donate)

5. Mark needed our help, and we promised to do what we could.
   (Correct answer: A) to do)