—Idon’tknowifDr.White

问题详情：

—I don’t know if Dr. White _______ to the party next week?

—I think he will come if he ________ free.

A．comes; will be         B．will come; will be         C．comes; is         D．will come; is

【回答】

D

知识点：状语从句

题型：选择题