题目内容

IgA肾病是最常见的原发性肾小球疾病。

A. 对
B. 错

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______ you ever ______ to Boston?

A. Have; been
B. Has; been
C. Have; be
Did; been

______ you ______ to Boston last year?

A. Do; go
B. Have; gone
C. Did; go
Did; went

Julie ______ already ______ breakfast.

A. has; eat
B. have; eaten
C. has; ate
D. has; eaten

Simon ______ breakfast yesterday.

A. doesn’t eat
B. didn’t eat
C. didn’t ate
D. doesn’t ate

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