题目内容
1. The singer and pianist asked to make a speech at the meeting yesterday.
1. was
2. 这个男孩第一次看到这个发明时，就对它产生了兴趣。
，he became interested in it. (the first time引导的时间状语从句)
4. The rain (not stop) since three hours ago.
1. Two thirds of this apple are bad.
4. The economic problems of one country often (对……有很大影响) the whole world.
5. 直到他摘下太阳镜，我才认出了他。
Not until he took off his sunglasses him.
6. Three fourths of the homework finished today.
3. The first man (set) foot on the moon was Armstrong.
6. Wild tribes still (居住) part of thePhilippines.
