—Did you visit the museum today?
—No. We _____ it, but we spent too much time shopping.
A．could have visited B．must have visited C．could visit D．must visit
Oh, boy, why are you killing your time this way? Can’t you find something _____ doing?
A．useful B．worthy C．valuable D．worth
I am going to do all I can _____ the bad impression you have of me.
A．to remove B．remove C．to leave D．leave
The company was willing to provide us with what we needed, _____ made us excited.
A．what B．it C．which D．that
_____ the doctors really doubt is _____ my mother will recover from the serious disease soon.
A．What; when B．That; how C．What; whether D．That; what
The students of the music school study ____.
A．music but also some other subjects
B．some other subjects as well as music
C．no subjects but music
D．neither music nor some other subjects
