Controlling water-pollution is necessary_____ it will be expensive.A．so thatB．as

题型：不详难度：来源：

Controlling water-pollution is necessary_____ it will be expensive.

A．so that

B．as if

C．even though

D．ever since

答案

解析

略

举一反三

__________ you trust him, you may as well follow his advice.

A．So that

B．Now that

C．Even if

D．Except that

题型：不详难度：| 查看答案

Joanna won’t leave her job undone ________ told to.

A．when

B．until

C．unless

D．as

题型：不详难度：| 查看答案

It was at four o"clock in the afternoon ____ he and his grandpa reached the museum in Guanghan.

A．while

B．that

C．when

D．as

题型：不详难度：| 查看答案

It was not _____ she took off her glasses _____ I realized she was a famous film star.　　

A．when , that 　

B．until , that

C．until , that

D．when , then

题型：不详难度：| 查看答案

It was not until 1920 ______ regular radio broadcasts began.

A．while　　　

B．which　　　　

C．that　　　　

D．since　　

题型：不详难度：| 查看答案