Peter was so excited________he received an invitation from his friend to visit 
Chongqing.

We agree to reduce our price by 3%  ____ you guarantee to open the credit card on time.

In modem society, some young people spend____ much money they make.

It won’t be quite a long time ________ your son is back, so don’t be worried.

Joanna is no less hardworking than her twin sister, _______ she failed in the final exam.

Experts are trying to work out a plan to deal with the problems caused by global warming ______ it is too late.

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

How long do you suppose it is ___________ he arrived there?

They had just finished the work _______ there was another one waiting for them.

________see the children before they went to bed, he came home early