— I rang you at about nine, but there was no reply.
— Oh, that was probably _____I was seeing the doctor.
A.why B. when C. what D. That
— There's someone knocking on the door. Who _____it be?
— It must be Mary. She promised to be here at 8：00.
A.must B. need C. shall D. Can
Www.sda.gov.cn, which has _____food and drug channel with clear explanations, is _____very popular website.
A.a, a B. a, the C. the, / D. / ; a
Dr. Peter Spence, ______ headmaster of the school , told us , “______ fifth of pupils here go on to study at Oxford and Cambridge.”
A. 不填；A B. 不填；The C. the; The D. a; A
------Do you want another piece of cake ?
------______.
A. I don’t think so B. No way
C. Not at tall D. I wouldn’t say no.
--Jay Zhou along with Song zuying __________ invited to the concert. Did you enjoy that part?
---No, no sooner __________ than they sang their top hit Ben Cao Gang Mu.
A．was; I had left B．were; I have gone
C．were; did I leave D．was; had I left
