Lucy worked very late last night. It ________ be about ten o'clock when she left the office.
A.must B.can C.would D.shall
Judy ________ play the piano. So she will take part in the art festival.
A.can B.may C.must D.should
I ________ go to Taiwan this winter vacation. It depends on when our vacation begins.
A.must B.might C.can D.need
You ________ ask that man over there. Maybe he knows how to get to the park.
A.need B.must C.had better D.might
Mom, ________ I invite Mary to come to my birthday party? She is new in our class.
A.could B.should C.must D.need
It's expensive to go to Beijing by plane. So I'm not sure whether I ________ take a plane or not.
A.may B.should C.must D.need
