引导条件状语从句的连词知识点题库

Don't call me at the office ________ it is necessary.

A . before B . unless C . although D . till

I have a tight budget for the trip, so I'm not going to fly the airlines lower ticket prices.

A . once B . if C . after D . unless

You will never gain success________ you are fully devoted to your work.

A . when B . because C . after D . unless

She says that she'll have to close the shop ________ business improves.

A . if B . unless C . after D . when

Everyone can make great progress______he works hard.

A . unless B . as long as C . when D . while

It is so cold that you can't go outside_____ fully covered in thick clothes.

A . if B . unless C . once D . when

I believe you will have a wonderful time here you get to know everyone else.

A . though B . as if C . once D . so that

_____ I make a promise to help others, I will manage to complete it.

A . Although B . Once C . Unless D . Before

—Why do you drink so much coffee?

—Well, it doesn't keep me awake in the night, I see no harm in it.

A . when B . as long as C . as though D . while

_________ we don't stop climate change, many animals and plants in the world will be gone.

A . Although B . While C . If D . Until

_______ you can sleep well, you will lose the ability to focus, plan and stay motivated after one or two nights.

A . Once B . Unless C . If D . When

The game is not very difficult _______ you understand the rules.

A . until B . though C . once D . unless

China's Silk Road Economic Belt, ____ accomplished, will quicken the economic growth of the countries along the route.

A . as B . once C . though D . unless

Tom is so independent that he never asks his parents' opinion _________ he wants their support.

A . since B . once C . unless D . after

—Will you go to the picnic tomorrow?

—Not my dear dog is allowed to accompany me.

A . if B . until C . unless D . when

With the Entrance Exam approaching, I feel more and more stressed. It will ruin my college dream _____ I take action now as soon as possible.

A . since B . once C . until D . unless

______the damage is done, it will take many years for the farmland to recover.

A . Until B . Unless C . Once D . Although

The economical car is big enough for a family of three _______ you need more space for baggage.

A . once B . because C . unless D . if

All the photographs in this book, __________ stated otherwise, date from the 1950s.

A . if B . when C . which D . unless

That is fair enough, given I do not look so senile.

引导条件状语从句的连词 知识点题库