. What the doctors really doubt is ______ my mother will recover from the serious disease soon.
#34555
A
when
B
how
C
whether
D
why
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To enjoy the scenery, Sara would spend long hours on the train ______ travel by air.
#33839
A
as to
B
other than
C
instead of
D
rather than
Tom sacrificed his personal life ________ he could get ahead in his career.
#30690
A
in case
B
as if
C
so that
D
only if
_____but he still couldn’t understand the logical connection of the two subjects.
#30645
A
Having told many times
B
Having been told many times
C
He was told many times
D
Many times as he was told