Question

"I told Sally how to get there, but perhaps I ________ for her."

A. had to write it out
B. must have written it out
C. should have written it out
D. ought to write it out

Answer 1

答案C
本句译为“我告诉了Sally怎样去那儿，但也许我本应该替她写下来(实际上没写)．这是表示“本应该做而实际上未做”，该用should/ought to+have done．