During the last three decades, the number of people participating in physical fitness programs ___ sharply.
| A．was increasing | B．has increased |
| C．had increased | D．will be increasing |
Recent accidents, _________ forty-five people lost their lives, have renewed concerns over the safety of overnight buses.
| A．that | B．where | C．which | D．when |
—I’m fed up with these naughty boys!
—Maybe we can find a new direction for their _________ energies. How about a football game?
| A．abundant | B．abnormal | C．aggressive | D．alternative |
The organizers promise _________ wins the first prize a chance to go abroad.
| A．who | B．whom | C．whoever | D．whomever |
Due to the policy of free highway fees on major holidays, too many passenger cars are trapped on the highways, causing heavy traffic jams, some even _________ for several hours.
| A．held up | B．broken up | C．taken up | D．given up |
Clothing made of man-made materials has advantage over _________ made of natural ones like cotton, wool or silk.
| A．one | B．it | C．that | D．the ones |