12.Try to give its meaning when you meet a new word.Don't _____ your dictionary all the time.( )
| A. | work on | B. | take on | C. | keep on | D. | depend on |
11.It's common ______ that the Japanese eat Sushi.( )
| A. | information | B. | knowledge | C. | direction | D. | instruction |
10.The main unit _________ all the computer's electronics.( )
| A. | contains | B. | shows | C. | uses | D. | helps |
9.You _______ ever saw computers years ago,but now they are everywhere.( )
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| A. | sometimes | B. | usually | C. | hardly | D. | almost |