(2019乐山改编)Bike sharing is very useful in our daily life a________ it still has some disadvantages.
(2019岳阳改编)The toys are really old, ________ I still want to keep them.
(2019江西改编)The film seems interesting ________ we all want to see it.
(2019温州)Adam has been working in the hospital ________ he left school.
初高中衔接题I ________ asleep because it took me a long time to realize that the telephone was ringing.
A.could have fallen B.should have fallen C.must have fallen D.mustn't have fallen
易错题—Robert, could you wash the car for me?
—Yes, I __________. I'm coming, dad.
A.could B.couldn't C.can D.can't
