3、We ______ careful when we are walking across the road.There are too many vehicles now.

A. can be                B. may be                    C. must be

3、C

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科目：初中英語 來源：山西省中考真題 題型：單選題

We ______ careful when we are walking across the road. There are too many vehicles now.

[     ]

A. can be
B. may be
C. must be

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科目：初中英語 來源： 題型：

We ______ careful when we are walking across the road.There are too many vehicles now.

A. can be                B. may be                    C. must be

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科目：初中英語 來源：2008年山西省初中畢業(yè)升學(xué)統(tǒng)一考試、英語試卷 題型：023

We ________ careful when we are walking across the road．There are too many vehicles now．

[　　]

A．can be

B．may be

C．must be

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