This is a process happens when land becomes desert people cut down trees and dig up grass.

This is a process          happens when land becomes desert        people cut down trees and dig up grass.

#33051

when; because

that; because of

when; because of

which; because

推荐题目

There is little chance that we will succeed in changing the law. ______, it is important that we should have a try.

#31460

Therefore

Otherwise

However

Thus

_____difficulty we will face, we should have confidence and try to solve it.

#32315

However

No matter how

Whatever

Whenever

 ______ his timely help, Kate overcame the hardship at last.

#31814

Now that

Thanks to

Since

Because

________ the parking regulations have become stricter, more people will use public transport and leave their cars at home.

#30297

Now that

Even though

In case

In order that

You should go to see him when he is so seriously ill.________, he is your brother.

#31732

Because

After all

At all

Above all

共4206题