It remains to be seen ________ this plan is practical enough to keep the project going.
#30340
A
whether
B
how
C
where
D
when
推荐题目
22．Lawrence Craven, a doctor from the USA，is the author of several published reports, one of______ introduced the idea in 1953 ______aspirin could reduce the risk of heart attacks．
#79598
A
them; when
B
which; that
C
what; that
D
which; when
How can they expect to learn anything ________ they never listen?
#30286
A
whether
B
when
C
but
D
unless
—Why didn’t you try your best to get on the bus?—I tried to , but _______ I could, it started moving.
#34227
A
before
B
when
C
until
D
after
Soccer is the most truly international team sport, but there’s still some question _______whether it should be called a game or open warfare.
#34415
A
due to
B
in addition
C
as to
D
owing to