Nick is never late for work.He always gets to the office________.A.on time B.in time C.at times
Excuse me. Do you know________.
--________ the population of Sichuan?--90 million people.
They are singing to ________ money for the poor children in rural areas.
How ________the woman is to save the boy from the danger of earthquake.
The children had to repeat that story twice,________they?