______ you put the sun there there did the movements of the other planets in the sky make sense.
A. If only
B. If so
C. Only if
D. As long as
参考答案:
I told Sally how to get here, but perhaps I ______for her...
I told Sally how to get here, but perhaps I ______for her.A.had to write it outB.must have written it outC.should have written it outD.ought to write it out