题目内容
4. 由于;因为
4. because of
2. 我总是担心被别人跟着。
I'm always by others.
9. 在学校足球场
5. I'm not sure what (do) about it.
( ) 3. He was still working it was really late.
A. even though B. because of
C. instead of D. rather than
5. 当她遇见她的朋友时，突然变得开心起来。
She when she met her friend.
16. nod in agreement
3. in front of
3. 正打算……
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