——Helen,doyouknowifMartin

问题详情：

 ——Helen, do you know if Martin _______ to my party next week?

 ——I think he will come if he ______ free.

A. will come; will be                            B. will come; is

C. come; is                                         D. comes; will be

【回答】

B

知识点：动词时态

题型：选择题