改错题(划出句子中的错误，并将正确句子写在下面横线上)
1．How is Jane yesterday?
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2．He go to school by bus last week.
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3．He goes home at 6:00 last month.
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4．Tom watch TV last night.
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5．Who find it just now?
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What _____ you _____ last weekend？  ( )

A．did; do

B．do; do

C．does; do

Yesterday Liu Yun ____ a mountain with her parents. (   )

A．climbed

B．climb

C．climbing

Yesterday I __________ my room. (   )

A．cleaned

B．clean

C．cleaning

They _____very dirty.   (    )

A．is

B．was

C．were