问题补充:
Every time they met , they would talk several hours together about the persons and things they remembered in the middle school.
A. that; who and which
B. when ; which
C. /; that
D. which ; /
答案:
A. that; who and which
B. when ; which
(答案→)C. /; that
D. which ; /
解析:考查定语从句。句中every time每次,作动词,故不需要关系词;that引导定语从句,先行词为persons and things,指人和物,关系词只能用that,选C。