2 . 请找出下面各句中错误的一处。
1. Although they [A]are poor, [B]but they [C]are [D]happy.
2. [A]It’s too late. [B]How about [C]take a taxi [D]there?
3. He [A]turned [B]around [C]and saw [D]unusual something.
4. You [A]can see [B]lots of trees [C]on both [D]side of the road.
5. She [A]can speak [B]English as [C]better as an [D]American.
6. [A]They searched [B]careful but [C]couldn’t find [D]anything.
7. [A]Shall we [B]go and [C]speak “hello” to [D]foreign teachers?
8. [A]Does [B]your mother busy [C]with her [D]housework now?
9. Everything [A]here [B]were very beautiful. We [C]enjoyed [D]it very much.
10. Children should [A]allowed [B]to spend time [C]playing [D]with their friends.

3 . 每天都有许多游客在这座塔前拍照，最早可以追溯到20世纪80年代。
Every day a number of tourists take pictures in front of the tower, dating back to ______.

7 . When you use oil or fat for cooking, use as little as you can. (同义句转换)
→When you use oil or fat for cooking, use ________.