题目内容
() 4. - What was your brother doing at this time yesterday?
-He was reading a magazine I was writing an e-mail at home.
A. while B. after
C. until
4. A
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题目内容
() 4. - What was your brother doing at this time yesterday?
-He was reading a magazine I was writing an e-mail at home.
A. while B. after
C. until