The experiment shows that proper amounts of exercise, if _______ regularly, can improve our health.
| A．being carried out | B．carried out | C．carrying out | D．to carry out |
The old __.
| A．have to take good care of | B．was looked after very well |
| C．have to be taken good care of | D．were had to look after very well |
___ you’ll miss the train.
| A．Hurry up, and | B．Be quick, or | C．Unless you hurry up, or | D．If you not be quick |
I paid __ money that I borrowed from him there years ago.
| A．twice as many as | B．twice the size of | C．twice the amount of | D．more than twice |
He managed to make himself ___ with his ___ Englsih.
| A．understand… breaking | B．understand..broken | C．understood…breaking | D．understood..broken |
All the doctors insisted that he ___ badly wounded and that he ___ at once.
| A．was… be operated on | B．were.. must be operated on |
| C．was… should be operated | D．should be…be operated |