2. 外语
  3. I was really too busy with my homework and I couldn’t help ______ housework.

I was really too busy with my homework and I couldn’t help ______ housework.

admin2012-01-16  55
问题 I was really too busy with my homework and I couldn’t help ______ housework.
选项 A、doing
B、do
C、did
D、done
答案B
解析
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