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
It is greatly ________ that he gave back the money he found on the bus.
#25946
A
for his delight
B
to his delight
C
to his credit
D
in his credit
— You’d better not judge a person _____ his appearance. —I know all the people dressed _____ rags are not beggars.
#26507
A
in; in
B
by; by
C
in; by
D
by; in
I don’t like the lecture yesterday. Most of what the speaker said was _____ the subject.
#27402
A
on
B
off
C
of
D
around
________ 18 June 1940, Churchill gave another fine speech when he drew attention ________ the courage of everyone defending Britain.
#26515
A
In, for
B
At, within
C
Beyond, at
D
On, to