问题

_____ scientists could make clones of human beings?[ ]
A: What if
B: What about
C: Why not
D: How come
B: What about
C: Why not
D: How come
正确答案是:
同类题型
His mother often helps him ___ English so he does better ___ English than others. [ ]
Although she didn’t know Boston well, she made her way _______to the Home Circle Building.
I’d like to read the book over there. Could you pass _______, please?—Certainly. Here you are.
fantastic documentary it is!– Do you mean the hot film “Diaoyu Island—-The Truth”?