—You’ve made great progress in your English haven’t you?—Yes but much .A. remains to doB

问题补充：

—You’ve made great progress in your English, haven’t you?

—Yes, but much .

A. remains to do

B. is remained to do

C. remains to be done

D. is remained to be done

答案：

A. remains to do

B. is remained to do

(答案→)C. remains to be done

D. is remained to be done

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