I wonder if she______us,but I think if s

问题选择题

I wonder if she______us,but I think if she______us we will be able to complete the task ahead of time.

A．helps;helps

B．will help;has helped

C．helps;will help

D．will help;helps

答案

答案：B

I wonder if中的if表示“是否”，从句中应该用一般将来时；I think if ...中的if引导条件状语从句，意为“如果”，从句中用一般时代替将来时。