问题
选择题
“You'll have to wait for two hours, ________ is, at about 11：30, ________ the medical report will come out, ”the doctor said to me.
A．that; when
B．which; that
C．that; which
D．it; whose
答案
Ａ
考察固定短语和定语从句。That is="that" is to say那就是说；第二空是定语从句，先行词是11:30,定语从句the medical report will come out的结构很完整，使用关系副词when,故A正确。