问题

We can never forget the days _the two astronauts in spaceship worked together and the days _we spent together.

A:which; when
B:when; which
C:what; that
D:on which; when

正确答案是：

同类题型

Two men, starting at the same point, walk in opposite directions for 4 meters, turn left and walk another 3 meters. What is the distance between them

At last，the teacher _________ who stole Li Ming’s pen.

He ______ told you that because you have known the truth.

Simon has gone abroad to have ____________ European tour.— Oh, really It must be ____________ unusual trip for him.

Linda ____________ her parents for money— ______________