问题
选择题
The problem is _______ we can arrive there before 6:00 tomorrow morning.
A．which
B．whether
C．when
D．that
答案
答案：B
考查表语从句。从句we can arrive there before 6:00 tomorrow morning.不缺状语不选when，只缺少起连接作用的词而主语是The problem所以只能选whether。句意：问题是我们是否能明天六点前到那。