He will go to the Great Wall if it ______ tomorrow.

　　A．won't rain　　B．doesn't rain C．don't rain D．isn't raining

Tom will go to the Great Wall as soon as he ________ to Beijing.

1. A.
   will come
2. B.
   has come
3. C.
   come
4. D.
   comes

Tom will go to the Great Wall as soon as he ________ to Beijing.

[　　]

He____ to the Great Wall if it ______tomorrow.

A. goes, doesn’t rain                B. will go, doesn’t rain

C. goes, won’t rain                  D. will go, won’t rain