1 . Who was it________played a trick on the new English teacher? (用适当的单词填空)

2 . 直到他母亲回来，这个孩子才上床睡觉。（强调句）
It was ____________________________________ the child went to bed.

3 . 我不想推卸责任，但正是他的失误造成了这么大的损失。
I hate to put the blame on others, but   ___________   was his fault   ___________ caused such a great loss.

4 . 是不是当她很难嚼东西的时候她才下定决心去那家朋友推荐的诊所看牙医的啊？（it）

5 . ________ the catastrophe happened that the local government realized the importance of substantial development.

A．It was until	B．Not until
C．Until	D．It was not until

6 . It might have been John________ bought a present for Mary yesterday.

A．that

B．when

C．what

D．which

7 . —Was it at 11 o'clock________your father came back last night? (用适当的单词填空)
—Yes, he is always coming back so late.

8 . It’s not what you have in your life but________you have in your life that matters. (用适当的单词填空)

9 . 直到他从瀑布边缘摔下来，他才意识到冒着生命危险摆拍是如此可笑的。(It) (汉译英)

10 . 直到到家玛丽才认识到她丢了钥匙。（not until 的强调句型）
_____________________________________________________________________.