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
--Did you see who the driver was?---No, the car ran so fast _____ I couldn’t get a good look at his face.
#41318
A
that
B
which
C
as
D
after
_________ your composition carefully, some spelling mistakes can be avoided.
#68935
A
Having checked
B
Check
C
If you check
D
To check
，I have to put it away and focus my attention on study this week.
#68208
A
However the story is amusing
B
No matter amusing the story is
C
Whatever the amusing story is
D
No matter how amusing the story is
The Science Museum, ________ we visited during a recent trip to Britain, is one of London’s tourist attractions.
#74484
A
which
B
what
C
that
D
where
The media can often help solve problems and draw attention _____situations ________help is needed.
#72071
A
in; that
B
to; which
C
in; where
D
to; where