I don't know if he ________. He will come if it ________.

[　　]

A．comes. won't rain

B．will come, doesn't rain

C．comes, doesn't rain

D．will come, won't rain

----I don't know if he ________.

----He'll come if it ________.

[　　]

A．comes，won't rain

B．will come，doesn't rain

C．comes，doesn't rain

D．will come，won't rain

----I don't know if he ________.

----He'll come if it ________.

[　　]

A．comes，won't rain

B．will come，doesn't rain

C．comes，doesn't rain

D．will come，won't rain

——I don’t know if he ________ tomorrow?
——If it ________ , he will come.

A．will come; won’t rain	B．will come; doesn’t rain
C．comes; doesn’t rain	D．comes; won’t rain