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19. A. look after  B. look at C. look like D. look the same E, look up

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18. A. How long B. How old C. How much D. How often E. How many

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17. A. That's all right   B. That's right/Right  C. All right

D. right    E. That's all

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16. A. there are   B. there is   C. have    D. Has

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15. A. some times  B. sometime/some time C. some time D. sometimes

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14. A. on           B. at, in, at, at, on

  C. at, at         D. on. on. at     E. in. on

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13. A. studied, learned    B. studying

C. study; learn      D. learn/study, learn

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12. A. problem; question   B. problem, questions

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10. A. carrying     B. bring     C. taken    D. get

Key 2:  11. A. Each. Every       B. each

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9. A. also       B. too

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