What the doctors really doubt is _________ my mother will recover from the serious disease soon.
A. when B. how C. whether D. why
—When are you leaving?
—My plane _________ at six.
A. took off B. is about to take off
C. takes off D. will take off
The headmaster hurried to the concert hall only ________ the speaker ________.
A. to find; left B. to find; gone
C. finding; left D. finding; gone
________ I really don’t like art, I find his work impressive.
A. As B. Since C. If D. While
I’ll give the prize to ________ finishes the work first.
A. whomever B. whoever C. who D. Anyone
He found it increasingly difficult to read, ________ his eyesight was beginning to fail.
A. though B. for C. but D so
