Question

When you go _________ the street, you must be careful.

A．crossing

B．cross

C．across

D．pass

Answer 1

C

试题分析：句意：当你过马路是，一定要小心。Cross 穿过，动词，句中已有动词做谓语，不合题意。Across穿过，介词，符合题意。Go across穿过，故选C。pass通过，动词。