She was once trained for better English pronunciation and she obvious pronunciation mist

问题补充：

She was once trained for better English pronunciation and she obvious pronunciation mistakes.

A. then; rarely has made

B. ever since; has rarely made

C. then; has rarely made

D. ever since; rarely has made

答案：

A. then; rarely has made

(答案→)B. ever since; has rarely made

C. then; has rarely made

D. ever since; rarely has made

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