--Happy birthday!-- Thank you!It’s the best present I _____ for.A.should have wished B.

题目

--Happy birthday!-- Thank you!It’s the best present I _____ for.A.should have wished B.
--Happy birthday!
-- Thank you!It’s the best present I _____ for.
A.should have wished B.must have wished.
C.may have wished D.could have wished

答案

could have done有两个意思：1）本可以做而没有做 如：YOu could have turned to me for help,but you didn't.2).could 可以表示可能性 如：Don't worry--they could have just forgotten to phone.别担心,他们可能...