问题

______ regular exercise is very important, it’s not a good idea to exercise too close to bedtime.

A:If
B:As
C:Although
D:Unless;

正确答案是：

同类题型

There are lots of restaurants in our town. And most of_____ are clean and cheap.

May I speak to your manager Mr. Williams at fiveo’clock tonight —I’m sorry, Mr. Williams _____ to a conference beforethen.

______does Frank play computer games — Twice a week

She didn’t study medicine. _________, shedecided to become an actor.

and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.