The experiment shows that proper amounts of exercise, ifregularly, can improve our health.
| A． | being carried out | B． | carrying out | C． | carried out | D． | to carry out |
—Jenny,they say you have asked for a leave because of a sudden headache.I’m worried about you,and are you ________better now?
—I’m all right now,thanks for your care.
| A．much | B．a lot | C．any | D．quite |
Feathers fall to the ground slowly,________ stones fall much faster.
| A．but | B．however | C．while | D．yet |
The children are seldom encouraged ________up late at night preparing their lessons,if ________.
| A．staying;once | B．to stay;ever | C．staying;sometimes | D．to stay;never |
Though great efforts have been ________on her study,Annie can’t still make any improvements,which makes her parents greatly________.
| A．made;surprised | B．done;surprising | C．taken;surprised | D．given;surprising |
The population of the city ________from less than half a million in 1949 to over two million.
| A．have increased | B．has increased | C．have improved | D．has improved |