Scientists are convinced______ the positive effect of laughter______ physical and mental health.
#26517
A
of ; at
B
by ; in
C
of ; on
D
on ; at
推荐题目
– How soon could they cover the distance?--- ____________.
#27595
A
For two hours
B
During the two hours
C
After two hours
D
In two hours
Johnson hasn’t felt any effect the new dieting recipe has him since he tried to lose weight three months ago.
#26687
A
for
B
to
C
on
D
with
－I don’t approve _____ wasting time . －You are right . But sometimes your actions don’t correspond ____ your words .
#27332
A
of ; with
B
of ; of
C
with ; with
D
with ; of