While playing ping-pong, our eyes see the ball coming, judge its speed and then

题型：不详难度：来源：

While playing ping-pong, our eyes see the ball coming, judge its speed and then hit it back ________ it should go.

A．when

B．why

C．what

D．where

答案

解析

where引导地点状语从句，修饰动词hit

举一反三

It’s not until no enemies were left that they________ .

A．did not stop fighting	B．did stop fighting
C．stopped fighting	D．have stopped fighting

题型：不详难度：| 查看答案

I hurried________I wouldn’t be late for work.

A．since

B．so that

C．as if

D．unless

题型：不详难度：| 查看答案

It was not long________the whole country rose up and drove the enemy out of their country.

A．when

B．before

C．after

D．until

题型：不详难度：| 查看答案

________the day went on, the weather turned out to be fine.

A．Which

B．Since

C．While

D．As

题型：不详难度：| 查看答案

We shall go to help them_______we are free.

A．whenever

B．whatever

C．wherever

D．however

题型：不详难度：| 查看答案