Complete the sentences with the right forms of the verbs.

1) I don't know when the party _____________.
2) He'll drive you there whenever you ____________.
3) The moment summer __________ here, the garden will be so beautiful!
4) I am going to take the exam after I _____________ all these books.

1) starts, 2) need, 3) is, 4) will study
1) starts, 2) need, 3) is, 4) have studied
1) is starting, 2) need, 3) is, 4) have studied