问题

_______LiuXiang set a new record in the 16th Asian Games, he can’t win all thetime[ ]

A: When
B: While
C: If
D: Whether

正确答案是：

同类题型

She left homewihtout dinner asif

We can never expect____ bluer sky unless we create _____ less polluted world.

Everyone in this country enjoys the same right __ religion, race or sex.[ ]

What _______ heavy rain it was!—Yes, but I love _______ air after it rains. It smells so fresh.

Why didn’t you come to play football with us yesterday afternoon — I ________ my mother with the housework then.