Please come to my party if you free tomorrow.A. willB. will beC. wereD. are

问题补充：

Please come to my party if you free tomorrow.

A. will

B. will be

C. were

D. are

答案：

A. will

B. will be

C. were

(答案→)D. are

解析：当主句为一般现在时，if引导的从句用一般现在时。