Professor Smith, along with his assistants, ____ on the project day and night to meet the deadline（最后期限）.
A.work B.working C.is working D.are working
Betty _____ up early since her childhood.
A.used to get B.has been used to get
C.has used to get D.has been used to getting
—The Browns are going to visit the Summer Palace tomorrow.
— _______________ if it __________ rain.
A.So we will; doesn't B.So will we; doesn’t
C.So do we; doesn’t D.So will we; won’t
— He’s never stolen anything before，______ he?
—______. It’s his third time to be taken to the police station.
A.hasn’t：Yes B.is；Yes C.has；Yes D.has；No
—Do you mind if I ask you a question?
— ___________.
A.Yes, please B.Not at all. Go ahead
C.I’m afraid not D.Of course not. I am busy
—Thank you so much for helping me with my school subjects!
— _____________.
A.My pleasure B.It is very kind of you C.With pleasure D.It doesn’t matter
