._____ you have a complaint to make, do something about it right away. The longe

题型：不详难度：来源：

.
_____ you have a complaint to make, do something about it right away. The longer you wait, the harder it will be to get your complaint resolved.

A．If

B．Unless

C．Though

D．Since

答案

解析

略

举一反三

.
________ being very convenient to shoppers, plastic bags also cause serious white pollution.

A．Because

B．Since

C．While

D．If

题型：不详难度：| 查看答案

If you keep working hard like this, it won’t be ______ you can read the English novels in the original (原著).

A．before long

B．soon after

C．long before

D．long after

题型：不详难度：| 查看答案

.
.Modern China is experiencing a completely new period ______ respect for science and creativity has become the guiding principle of the society.

A．which

B．where

C．that

D．in which

题型：不详难度：| 查看答案

.
_______ the argument sounds reasonable, it still needs support of evidence.

A．Since

B．Whether

C．Although

D．As

题型：不详难度：| 查看答案

.
He made a big mistake, and _________, he lost his job.

A．as a result

B．as soon as

C．in case

D．even if

题型：不详难度：| 查看答案