As many as five courses are provided,and you are free to choose ________ suits you best.

It sounds to me as if he knows a lot about computers.—He is a person who is fond of________.

Many experts hold the view teacherdevelopment is the key to bettereducation lies

What’s the matter with you, Tom?—______ the ladder, one of arms has been broken.

Remember to turn off thelights when you leave the room. — ________.