28. My English teacher has given me so much help that I really want to do something for hi

问题补充：

28. My English teacher has given me so much help that I really want to do something for him .

A. in return

B. in fact

C. in surprise

D. in turn

答案：

(答案→)A. in return

B. in fact

C. in surprise

D. in turn

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