题目内容
2. So far,many (spacecraft) have travelled in space.
2. spacecraft
6. The road is always (crowd) during the rush hour.
1. Lang Lang began learning to play the piano when he was two years old.(改为简单句) Lang Lang began learning to play the piano of two.
() 2. —do we need to move to Mars?
—The Earth is crowded and polluted.
A. How B. Why C. What D. Where
2. There're a large variety of (商品) in the shop.
() 2. Plants on Mars should be able to provide food,water and oxygen humans.
A. of B. with C. for D. to
4. 网络游戏是一种非常受欢迎的娱乐形式。
A veryentertainment is online games.
6. What (百分数) of the Earth is covered by the sea?
() 8. Some people spend their lives about money.
A. to think B. think C. thinking D. on thinking
