18. It was ______ back home after the experiment.
| A．not until midnight did he go | B．until midnight that he didn’t go |
| C．not until midnight that he went | D．until midnight when he didn’t go |
You get a lot of criticism, but you just have to carry on _______.
| A．nevertheless | B．fairly |
| C．regardless | D．sincerely |
Puzzled by this strange natural phenomenon, the scientists started to explore every _______ they knew to figure it out.
| A．impression | B．intention | C．avenue | D．design |
To the public’s delight, a large number of government officials who _______ their power have been well punished.
| A．ignored | B．abused | C．obtained | D．countered |
In the capital Kathmandu, thousands of people _______ the night on pavements, in parks and open fields in chilly temperatures before they returned to their collapsed homes.
| A．would spend | B．were spending |
| C．spent | D．had spent |
Why _______ you leave with Lucas now? There are still two days left before you go to work and you can stay with us for more time.
| A．should | B．shall | C．could | D．must |