问题

______ you put the sun there did the movements of the other planets in the sky make sense. [ ]

A: Only if
B: Even if
C: If
D: If only

正确答案是：

同类题型

Try to give its meaning when you meet a new word. Don’t _____ your dictionary all the time.

Liu Xiang is regarded ____ one of the bestrunners in the world.

______are you staying there For two weeks.

He lives near a ______________. He often goes swimming in summer.

He knows it is high time that he ________ at once.