It is uncertain _______ side effect the medicine will bring about,although about two thousand patients have taken it.
#32917
A
that
B
what
C
how
D
whether
推荐题目
．How long is it ______ we last spent the holiday in the country together?
#34786
A
until
B
before
C
since
D
that
(2013·银川高三二模)It remains to be seen ________ this plan is practical enough to keep the project going.
#30416
A
whether
B
how
C
where
D
when
We need some more facts and figures __________ we take the final decision.
#31598
A
since
B
before
C
after
D
until
I should have bought the beautiful vase, but I ____________enough money.
#32878
A
didn’t have
B
don’t have
C
haven’t had
D
hadn’t had
Several weeks had gone by _______ I knew the painting was missing.
#32417
A
as
B
since
C
until
D
before