There are many people downstairs. What do you think _____?
A. to happen B. happening C. is happened D. has happened
— Could you tell me when Mr. Li ______in Jinan?
— Sure. When he _______， I’ll call you.
A. arrives； will arrive
B. will arrive； arrives
C. arrives； arrives
D. will arrive； will arrive
. The train _____ for twenty minutes.
A. left B. has left C. is leaving D. has been away
-- __________ you ________ your book to the library? -- Yes. I returned it yesterday.
A. Did, return B. Have, returned
C. Will, return D. Do, return
---Would you like some coffee?
---Yes, and please get me some milk. I prefer coffee _______ milk.
A. with B. to C. of D. on
I wonder ________ they finished so many different jobs in such a short time。
A. why B. how C. when D. where
