Lesson2 Protecting the Sea测试
一、单选：每题1分， 共15分
1. It didn’t take him long ____ he worked out the problem.
A. before B. since C. when D. as
2. ――She hasn’t telephoned us for a long.
-----Yes , I’m worried about her ._______?
A. What do you think is she busy doing
B. What you think she is busy doing
C. What do you think she is busy doing
D. What you think is she busy doing
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