With the widespread of fog and haze(雾霾) in central and eastern China, our government is supposed to ______ their efforts to prevent further pollution.
| A．make up | B．show up |
| C．step up | D．wake up |
If I had known you were coming, I ______a larger table.
| A．would have reserved | B．should have reserved |
| C．would reserve | D．might reserve |
I passed by Joan quickly without greeting her, ______not to see her.
| A．pretending | B．to pretend |
| C．pretended | D．having pretended |
The inventor was determined to go on with the experiment_______countless failures.
| A．instead of | B．because of |
| C．in favor of | D．regardless of |
To our great relief, the exam turned out to be not so difficult as we_______．
| A．imagined | B．had imagined |
| C．would imagine | D．have imagined |
It’s one thing to have theories, but it’s _______to put them into practice.
| A．others | B．other | C．another | D．more |