7.Quietness seems impossible everyone takes their seats and begins to write.( )
A. | until | B. | after | C. | for | D. | once |
6. Time,the teacher had us do half of the exercises in class and complete the other half for our homework.( )
A. | To save | B. | Save | C. | Saving | D. | Having saved |
5.In China,you vote when you are 18.( )
A. | must | B. | might | C. | can | D. | would |
20.______ there was no conclusive evidence,most people thought he was guilty.( )
A. | Since | B. | While | C. | When | D. | However |
19.Tommy was planning to buy a car The next week,______ he ______ enough for a used one.( )
A. | by that time; had saved | B. | by which time; had saved | ||
C. | by that time; saved | D. | by which time; has saved |
18.Never believe anything ______ any other person has believed it.( )
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A. | that | B. | unless | C. | because | D. | once |