A-A+
But from the start of their experiments the W
问题详情
But from the start of their experiments, the Wright brothers found that they needed money to pay _______ their research.
A. back
B. down
C. for
D. off请帮忙给出正确答案和分析,谢谢!
参考答案
正确答案:C
payfor;付款;payoff:偿清。根据题意选C。pay不与其他两项搭配使用。