Scientists say it may be five or six years_______it is possible to test this medicine on human patients.
#92600
A
when
B
after
C
before
D
since
推荐题目
I was leaving the office when it suddenly to me that I had forgotten my keys.
#92421
A
struck
B
happened
C
occurred
D
hit
-----Was the class long enough?-----No, _______ enough.
#94703
A
it wasn’t much too long
B
it wasn’t too much long
C
it wasn’t quite long
D
it wasn’t too long much
--- Have you got the results of the final exam?--- Not yet. It will be a few days _________ we know the full results,
#92406
A
before
B
after
C
until
D
when
(2009福州市高中毕业班第一次单科质量检查)There are altogether fifty-six students in our class, is a new comer from a faraway mountain village.
#95046
A
the most hard-working of who
B
of whom the most hard-working
C
the most hard-working of them
D
but the most hard-working of whom