Scientists say it may be five or six years _____ it is possible to test this medicine on human patients.
#67597
A
since
B
after
C
before
D
when
推荐题目
I want to use the same tools _______used in your factory a few days ago.
#73759
A
as was
B
which was
C
as were
D
which
It _____ ten years since they _____ to France.
#41050
A
was; moved
B
was; have moved
C
is; have moved
D
is; moved
He turned to Russia for help in the belief ______ the country would protect him.
#66924
A
what
B
whether
C
that
D
because
Ms. Claire is a strict but kind teacher, _____ who, usually, _____ her students.
#73461
A
ones; are liked by
B
one; are liked by
C
ones; is popular among
D
one; is popular with
We are in a difficult position in____ we have nobody properly qualified for this work.
#68326
A
that
B
when
C
what
D
where