I couldn't have got to the meeting on time - _______ an earlier train .
| A．if I had not caught | B．unless I had caught | C．if I did not catch | D．unless I caught |
If I had known about this computer program, a huge amount of time and energy .
| A．would have been saved | B．had been saved |
| C．will be saved | D．was saved |
— Her father is very rich.
—________ She wouldn’t accept his help even if it were offered.
| A．What for? | B．So what? | C．No doubt. | D．No wonder. |
The experiment shows that proper amounts of exercise, if regularly, can improve our health.
| A．being carried out | B．carrying out | C．carried out | D．to carry out |
I have been convinced that the print media are usually more and more reliable than television.
| A．accurate | B．ridiculous | C．urgent | D．shallow |
Many buildings in the city need repairing, but the one ______first is the library.
| A．repaired | B．being repaired | C．repairing | D．to be repaired |