Scientists are convinced _____the positive effect of laughter _____physical and mental health．
#26778
A
of ;at
B
by; in
C
of ; on
D
on ;at
推荐题目
If you keep on eating too much, losing weight is_______.
#26862
A
out of the question
B
out of question
C
no question
D
beyond question
In Germany, you shouldn’t arrive late to a dinner party; you should always be ___.
#27269
A
on time
B
at times
C
in time
D
for a time
The manager wants to see changes in the company, and I am sure he will ______.
#25538
A
in particular
B
in turn
C
in charge
D
in time
If you cannot have a good command of grammar as well as precise usage of each word you’ve learnt, it is ________ for you to use English flexibly.
#25870
A
out of trouble
B
out of habit
C
out of the limit
D
out of question
Repair work is ___progress on the south-bound lane of the highway and will continue until June.
#26097
A
on
B
in
C
of
D
at