I climbed the stairs slowly with a big suitcase, my father with two more.
A．followed B．was following C．following D．having following
The country’s population small, and most of its population in the mountainous areas.
A．are; lives B．are; live C．is; live D．is; lives
Contemporary English is quite different from Old English. There has never been a year____ the language was not changing.
A．that B．when C．for D．until
To help a friend solve the problem troubling him, .
A．a friend should be made known of his difficult situation
B．a man should be equipped with the kind of knowledge required
C．nothing is better than offering of knowledge required
D．keeping one’s promises is most important
Not until all the fish died in the river how specious the pollution was.
A．did the villagers realize B．that the villagers realized
C．the villagers did realize D．didn’t the villagers realize
a reward of $1,000 will be given to can provide any clues to the case which has been investigated by the police for nearly half a year.
A．whoever B．whomever C．anyone D．who
