—Peter come to see us?—I think he will come if he not busy.A. Does; isB. Does; will beC. W

问题补充：

—Peter come to see us?

—I think he will come if he not busy.

A. Does; is

B. Does; will be

C. Will; is

D. Will; will be

答案：

A. Does; is

B. Does; will be

(答案→)C. Will; is

D. Will; will be

解析：此题重点考查if引导的条件状语从句，从句用一般现在时，主句要用一般将来时。