问题
A smile costs __________, but it gives so much. So we should learn to smile.
A:nothing
B:something
C:anything
D:everything ;
B:something
C:anything
D:everything ;
正确答案是：
同类题型
While watching television, _______________________
You ______ be polite to the oldman.
Boys and girls, _____in bed. It’s bad foryour eyes
When I got back home I saw a message pinned to the door ____”Sorry to miss you; will call later.”[ ]
I’m planning ________ a BMW, for these days the prices of cars are going down.