Researches are convinced ______ the positive effect of laughter ______ physical and mental health.
#26134
A
of; at
B
by; in
C
of; on
D
at; on
推荐题目
—Do you like working as a waiter? —Yes, but I get tired ______ standing the whole day．
#26287
A
with
B
for
C
to
D
of
The manager is talking with his secretary _____ the telephone. They usually keep in touch _____ telephone.
#29114
A
by ;on
B
through; by
C
on; on
D
by ;with
Lily didn’t ask her father to buy a car for her; , she bought one for him!
#25897
A
in a word
B
to be honest
C
what’s more
D
on the contrary