______ people have become masters of their country ____ science can really serve the people.
#93348
A
It is only then ;that
B
It is that;when
C
It is only when; that
D
It is when;when
推荐题目
______ Marx's works with Engels', and you'll find many differences．
#92685
A
Comparing
B
Compare
C
To compare
D
If you compare
I am lucky ______ the thing I enjoy doing most is ______ I've ended up doing.
#95021
A
when... that
B
if...what
C
that... what
D
that... that
The old couple married for 40 years and never once____ with each other.
#95134
A
they had quarreled.
B
they have quarreled
C
have they quarreled
D
had they quarreled.
April 1 st is a special day, practical jokes may be played without punishment.
#93685
A
in which
B
on which
C
with which
D
for which