It’s better for you to take some time to prepare your annual (年度的) performance _____ carefully, which will decide whether you will get a promotion next year.
David said that it was ____________ his strong interest in computers that he chose the course.
It’s not what we do once in a while _________ shapes our lives, but what we do consistently.
There’s some doubt __________he’ll keep his promise.
Do you know ____John is getting on well with his studies?
-------Each of the students,working hard at his other lessons,______to go to university. ---So do I.