The bell rang ______ the teacher was explaining the answer to the students.
A. until B.before C.while D.after
----Do you know when your mother ____________?
----I don’t know. But if she __________, I’ll tell you.
A. will come, comes B. will come, will come
C. comes, will come D. comes, comes
----I have finished my homework. ----When ______you________it?
A. do; finish B. will; finish
C. have; finished D. did; finish
----_____ will the concert begin? ----____ seven o’clock.
A. How long, Not until B. How long, Until
C. How soon, Not until D. How soon, Until
----Where are you going for the coming winter holiday?
---- I’m not sure. We ________ go to Harbin.
A. must B. may C. can D. should
----Some more milk, please. ----Sorry, there’s ________ left in the fridge.
A. nothing B. no C. none D. no one