We can’t do well in examination _________ we study hard in school time.

If one succeed，one must put his heart into his career

Congratulations to you on making such greatprogress!—Thanks, but I would do better ________ I was givenmore time.

As we all know, with the development of science and technology, the earth’s resources are ________ at an alarming rate, so we should make good use of them.

What time do you usually get _____—Well, _____ six thirty.