Scientists are convinced the positive effect of laughter physical and mental health.
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A
of; at
B
by; in
C
of; on
D
on; at
推荐题目
At the railway station, the mother waved goodbye to her daughter until the train was _______.
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A
out f sight
B
out f reach
C
out of order
D
out of place
Don’t be angry _______ me for not having written. I was really too busy.
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A
about
B
with
C
to
D
for
_______ details of this job, please contact our manager Mr. Smith at 8765323.
#25773
A
For
B
In
C
With
D
On
The garden looks more beautiful ____ a lot of flowers coming out.
#27122
A
for
B
with
C
because of
D
as