—________have you been married？
—For twenty years．
A．How far
B．How often
C．How long
D．How soon
They________a hit CD in the last six months．
A．make
B．made
C．was made
D．have made
They________to Tibet many times．
A．are
B．were
C．have been
D．had been
Most of the young people can hardly speak any Chinese，________？
A．can he
B．can’t he
C．can they
D．can’t they
He likes watching the children________football．
A．play
B．to play
C．playing
D．plays
—Have you watered the plants________？
—Yes，I have．
A．already
B．yet
C．never
D．ever
