—Mike you’ve got a “D” in physics. ?—Well. I find the subject hard and I think I’ll drop

问题补充：

—Mike, you’ve got a “D” in physics. ?

—Well. I find the subject hard and I think I’ll drop it for History next term.

A. What if

B. How come

C. Why not

D. So what

答案：

A. What if

(答案→)B. How come

C. Why not

D. So what

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