英语单项选择Scientists are convinced ______ the positive effect of
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英语单项选择
Scientists are convinced ______ the positive effect of laughter _____ physical and mental health.
A of;at B by;in C of;on D on;at
kathy ____ some French while she was away on a business trip in France.
A picked up B took up C made up D turned up
The _____ boy made the police and his family ______
A gone ;puzzled B missing;puzzled C missing;puzzling D lost;puzzling
Scientists are convinced ______ the positive effect of laughter _____ physical and mental health.
A of;at B by;in C of;on D on;at
kathy ____ some French while she was away on a business trip in France.
A picked up B took up C made up D turned up
The _____ boy made the police and his family ______
A gone ;puzzled B missing;puzzled C missing;puzzling D lost;puzzling
C,A,B
英语单项选择Scientists are convinced ______ the positive effect of
Scientists are convinced of the positive effect of laughter
英语 语法填空scientists are convinced _____ the positive effect of
Scientists are convinced___the positive effect of laughter _
1.Scientists are convinced___the positive effect of laughter
What are some of the negative effects and positive effect of
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