问题描述：
it _____John and Mike who cleaned the room
A)are
B)were
C)was
D)has been
请说明选择的理由,为什么不能选ABD
2)nowhere else in the world can a tourist find cheaper goods than in hongkong
请帮我翻译一下
3)look this way!there comes the school bus请帮我翻译一下
A)are
B)were
C)was
D)has been
请说明选择的理由,为什么不能选ABD
2)nowhere else in the world can a tourist find cheaper goods than in hongkong
请帮我翻译一下
3)look this way!there comes the school bus请帮我翻译一下
问题解答：
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