8：Tom’s score on the test is the highest in the class; he ___ last night. A：should study B：should have studied C：must have studied D：must have to study ...

2：She acted___nothing had happened. A：as B：though C：as if D：since ...

21：_______ is known to the world, Mark Twain is a great American writer. A：That B： Which C： As D： It ...

15：_______ one time, Manchester was the home of the most productive cotton mills in the world. A：On B： By C： At D： Of ...

3：——Why does he look sad?——There are so many problems ________. A：remaining to settle B：remained settling C：remaining to be settled D：remained to be settled ...

22：Frankly speaking, I’d rather you ______ anything about it for the time being. A：have done B： haven't done C： don't do D： didn't do ...

16：The tomato juice left a brown _______ on the front of my jacket. A：track B： trace C： spot D： point ...

10：Our new house is very _______ for me as I can get to the office in five minutes. A：adaptable B： convenient C： available D： comfortable ...

4：Professor Smith promised to look ___________ my paper, that is, to read it carefully before the defence. A：after B：over C：on D：into ...

23：In previous times, when fresh meat was in short _______, pigeons were kept by many households as a source of food. A：store B： provision C： reserve D： supply ...