Your natural hair color begins to fade__

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问题选择题

Your natural hair color begins to fade________you grow older, and in time you grow grey. [ ]

A. since

B. when

C. while

D. as

答案

答案：D

补全对话，情景问答

看图片，填空，完成对话。

A: Sally's birthday is coming. I want to give her a l. . 2. do you suggest?

B: Why don't 3. her a teddy bear?

A: Oh, no. She's 4. a teddy bear.

B: How 5. ?

A: That's a good idea. I'll buy her a pinkdress.

判断题

钢轨探伤仪的分辨力指标越高越好。