问题补充:
While crossing the street, please for the coming cars.
A. watch out
B. take care
C. watch over
D. be careful
答案:
(答案→)A. watch out
B. take care
C. watch over
D. be careful
解析:A.watch out小心B.take care注意,小心,常构成take care of 的短语C.watch over看守 D.be careful小心;句意:当过马路时,请当心来往的汽车,watch out for当心,小心