I couldn’t help if the bus was late.A. thisB. thatC. itD. them

问题补充：

I couldn’t help if the bus was late.

A. this

B. that

C. it

D. them

答案：

A. this

B. that

(答案→)C. it

D. them

解析：it作形式宾语真正宾语为if the bus was late。 公共汽车晚点我无能为力。