1 . It was not until 1936 ______ baseball became a regular part of Olympic Games. (用适当的词填空)

2 . It was he__________ lent me a hand when I was in need. (用适当的词填空)

3 . It was at an evening party___________ I first saw her. (用适当的词填空)

4 . It was not___________ we had stayed together for a couple of weeks that I found we had a lot in common. (用适当的词填空)

5 . It was with great courage___________ the boy told the truth that he had stolen the money. (用适当的词填空)

6 . It was the driver rather than the students that________(be)responsible for the accident. (用所给词的适当形式填空)

7 . It is___________(we) that Professor Smith teaches every Monday. （用所给词的适当形式填空）

8 . It is not luck but difficulties that___________(make) him successful. （用所给词的适当形式填空）

9 . It was in the café___________ she wrote the book. （用适当的词填空）

10 . It___________ two visitors that saved the drowning boy. （用适当的词填空）