Question

Mary ________ something not suitable for the occasion, but she was at least tryi

Mary ________ something not suitable for the occasion, but she was at least trying to be of some help to you．
A. may have done
B. should have done
C. should say
D. would do

Answer 1

答案A
may/might have done sth表示对过去发生的事情的肯定的猜测，意为“过去可能发生了某件事”。