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 shall never forget the days ______ I stayed in Africa, ________ has brought me a lot of advantages.
#69576
A
that; which
B
when; which
C
when; that
D
which; that
I _______ to the party if I________tomorrow..
#68072
A
will go; will be invited
B
will go; am invited
C
go; will invite
D
go, have been invited
They will telephone the police and complain about it the noise .
#41174
A
if; stops
B
unless; stops
C
if not; stops
D
unless; doesn’t stop
There is a police car in front of the house of our neighbour's. _____ do you think _____ ？
#71986
A
What；has happened
B
What；of happening
C
What；of being happened
D
Whatever；of happening
The Chinese government, was reported yesterday, will develop a beautiful rural environment farmers can live a happy life.
#69213
A
as; where
B
which; how
C
what; whose
D
as; that