The life of Milu at present. A. is been studiedB. is being studiedC. was being studiedD.

问题补充：

The life of Milu at present.

A. is been studied

B. is being studied

C. was being studied

D. have been studied

答案：

A. is been studied

(答案→)B. is being studied

C. was being studied

D. have been studied

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