.----Simon won the first prize in the math contest do you know?----Yes he’d won severa

问题补充：

.

----Simon won the first prize in the math contest, do you know?

----Yes, , he’d won several first prizes on the subject.

A. all in all

B. in the meantime

C. in other words

D. as far as I know

答案：

A. all in all

B. in the meantime

C. in other words

(答案→)D. as far as I know

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