问题

My English teacher gave us a suggestion yesterday,_____is often the case, ______our monitor organize a debate after class.
A:which, which
B:which, that
C:as, that
D:as, which
B:which, that
C:as, that
D:as, which
正确答案是:
同类题型
It’s always difficult being in a foreign country, _____ when you can’t speak the language [ ]
Traffic was ____ for several hours by the accident.
(2014·潍坊市联合考试)The meeting between the presidents of those two countries________in Paris last week.
Ice is not often seen here in winter as the temperature normally stays zero.