Betty will ring me up when she _______ in Beijing.
A．arrive B．arrives
C．arrived D．will arrive
I called you, but nobody answered. Where_______ you?
A．is B．are
C．was D．were
Our country ______the sixth population census(人口普查) already.
A．finished B．has finished
C．will finish D．finishes
— Mr. Lee to a student when I entered the classroom this morning.
—He is very patient he is young.
A．talking; but B．talks; though
C．was talking, though D．talked, however
Mrs.Weng came back from France in 2010. She _________ there for four years.
A．works B．worked C．has worked
．It’s difficult for me to decide which one to choose, because ____ of them are good.
A．neither B．both
C．either D．each
