单项选择题

______ many times, this radio receiver is found very sensitive.

[A] Being tested
[B] Having been tested
[C] Having tested
[D] Testing

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单项选择题

I have to go to see my doctor this afternoon. Would you like me to ______ you

[A] send
[B] escort
[C] accompany
[D] campaign

单项选择题

I know Ann didn't pass this examination, but really she is ______ stupid.

[A] something but
[B] anything but
[C] nothing but
[D] not but

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