1 . He proved that it's not________ happens to us that determines our lives. (用适当的词填空)

2 . It was not until 1974 ________ his ability to write appeared again. (用适当的词填空)

3 . Who was it __________found your pen in the classroom yesterday? (用适当的词填空)

4 . Sometimes, people, even those wise ones, have no idea of what it is ________ makes them make such stupid mistakes.

5 . It is because English is being widely used at present ________ we learn ________ hard.

6 . —Was it ________ he said or something that he did ________ made you cry so sadly, Sarah?—No, not really.

7 . It is ________ he often breaks the school rules ________ makes his head teacher unsatisfied with him.

8 . ________was when we were returning home that I realised what a good feeling it was to have helped someone in trouble. (用适当的词填空)

9 . For the happiness of your family, ________ obey traffic rules. （用适当的词填空）

10 . It was not ________ dusk that they made their way toward the cottage. （用适当的词填空）