the whole process for the studies of cancer took more than a year, the technology is moving so fast that it will soon take just weeks．
#31066
A
How
B
Because
C
If
D
While
推荐题目
________ reducing pullution, man should pay more attention to conserving energy.
#79708
A
As well as
B
As long as
C
As far as
D
as soon as
I was on the highway _______ this car went past followed by a police car. They ______ at least 150 kilometers an hour.
#32322
A
when; should have been driving
B
while; would have driven
C
as; could have driven
D
when; must have been driving
When we get knocked down, we get back up and we come back stronger, and, ____ I’m President, that’s what we’ll keep doing.
#31725
A
even though
B
as if
C
now that
D
as long as
_______ the house is empty, memories flood my mind of a time when it was filled with life.
#33568
A
Since
B
Unless
C
As if
D
Even though
---When did you get to know each other ? ----It was in 2008___ we spent summer vocation together.
#33538
A
that
B
when
C
before
D
since