My sister sometimes has only_____ apple for_________ dinner because she wants to be thin.( )
a;/
a; the
an;the
an;/
Are you willing to live on Mars one day?
__________. It sounds interesting, but it still worries me.( )
A.I'm not sureB.Sure, I will
C.That's all rightD.I hope so
Could you tell me____ so well?
Without the teacher's help, it was impossible for me to get the prize.( )
A.how did you do itB.when you did it
C.why did you do itD.how you did it
It is 4:30 pm. Ben and Leon _______ their work, so they are playing chess now.( )
A.finishB.finished
C.have finishedD.will finish
I'm sorry I can't finish the task on time because I ____ only 10 minutes.( )
A.will giveB.was givenC.am givenD.gave
I just saw Peter in the library.
It _______ be him. He is studying in the classroom.( )
A.needn'tB.mustn'tC.shouldn'tD.can't