Scientists are convinced the positive effect of laughter physical and mental health.
#28244
A
of; at
B
by; in
C
of; on
D
on; at
推荐题目
The customer bargained with the shopkeeper for a long time, and finally they agreed ___________ the price.
#28903
A
to
B
with
C
on
D
at
We should discuss the plan _____ before we work it out.
#26487
A
in general
B
in detail
C
on time
D
on purpose
She’s aiming ______a sholarship; That is why she has been focusing her minds_____her work..
#29042
A
at; on
B
to; on
C
for ; in
D
at; into
The two football players seem like enemies on the field but _______ they are good friends.
#26968
A
in return
B
in detail
C
in reality
D
in advance