Question

苺　@Rinneとペア画

この問題はどのように解くのがコツなのでしょうか？
(6)のみあっていて(5)の答えであるDは、4か5で悩んでいたので納得できているのですが他の問題がわかりません。もともとこのような問題形式が苦手なので教えて頂きたいです。お願いします。

3 Choose the most appropriate words to complete the sentences.
1) We can't find Ann anywhere. She (
).
2) The children made a lot of noise in the train. Their parents ( ) them.
3) You ( ) him on the street. He is still in the hospital.
4) You had enough time then. You (
) at such a speed.
5) She doesn't have money with her now. She ( ) all her money on clothes.
6) The garden is all wet. It (
a) cannot have seen
d) should not have spent
) last night.
b) must have rained
e) need not have driven
c) may have gone home
f) should have scolded