—______ did Samuel stand by the window so long?
—To see what would happen.
A. How B. When
C. What D. Why
—What else do you need for the trip, Mum?
—______ else. I think we have got everything ready.
A. Nothing B. Anything
C. Something D. Everything
Nanjing Underground Line 10 ______ on the morning of February 27th, 2014.
A. tested B. has tested
C. was tested D. has been tested
—Are you sure you have to? It’s been very late.
—I don’t know ______ if not now.
A. where can I do itB. why did I do it
C. when I can do itD. how I will do it
I ______ use a clock to wake me up because at six o’clock each morning the first train passes by my house.
A. couldn’t B. mustn’t
C. shouldn’t D. needn’t
More Hope Schools have been ______ in China to help children to return to school in the past few years.
A. set upB. put away
C. given up D. sent up
