题目内容
When crossing the street,________ cars．A．look up
B．look for
C．look after
D．look out for
答案：D
提示：
提示：
| Look out for cars当心车
|
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题目内容
When crossing the street,________ cars．A．look up
B．look for
C．look after
D．look out for
| Look out for cars当心车
|