Scientists say it will be five or six years _____ it is possible to test this medicine on human patients.
#68451
A
before
B
that
C
since
D
when
推荐题目
The 3G cell-phone must be of great use to ______ wants to get the information through the Internet quickly.
#69312
A
who
B
whoever
C
whomever
D
whichever
Why not try your lick downtown, Bob? That’s __________ the best jobs are.
#72448
A
where
B
what
C
when
D
why
______ bright a talker you are, there are time when it’s better to remain silent.
#67638
A
Whatever
B
However
C
Whenever
D
Whoever
--- -When did he get his first novel published?---- It was in 2008 ____ he was still in high school.
#70047
A
that
B
since
C
when
D
which
–The plane is due to take off at 7:50 from the airport.–________ we fail to arrive there in time. –Try to take another flight then.
#69435
A
What if
B
As if
C
Even if
D
Only if