Question

They thought __________ important to look right and left when ________ the road.

A．it’s; cross

B．it; to cross

C．it; crossing

D．it was; to cross

Answer 1

C

试题分析: 句意：他们认为过马路时向左右看非常重要。cross 横穿；they主语，thought谓语，it形式宾语，真正的宾语为to look right and left;when crossing the road当过马路时，疑问词+现在分词做伴随状语；故选C。