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
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The building used to be splendid but now it is _____.
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A
in ruins
B
in the ruin
C
with the ruin
D
by ruin
_ _ busy schoolwork, the children also have to take arts, music and sports classes in their free time.
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A
Rather than
B
Owing to
C
Except for
D
Apart from
This special school accepts all disabled students, educational level and background.
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A
according to
B
regardless of
C
in addition to
D
in terms of