Many students believe the choice of their courses and universities should____ __ their own interest.
A．be based on B．base on C．be basing on D．base at
---Who called just now?
---I don’t know because I didn’t______ his voice.
A．listen B．recognize C．get to know D．realize
-----Did you watch the movie After Shock last night ?
----- I had planed to , but it _______ hard all the time .
A．is raining B．was raining C．had rained D．has rained
You can’t imagine what difficulty we had_______ home in the snowstorm.
A．walking B．walk C．to walk D．walked
Students should _______ everything important that their teachers give in class.
A．set up B．set down C．set aside D．set out
We are living in an age _______ many things are done on computers.
A．which B．that C．whose D．when
