0  423496  423504  423510  423514  423520  423522  423526  423532  423534  423540  423546  423550  423552  423556  423562  423564  423570  423574  423576  423580  423582  423586  423588  423590  423591  423592  423594  423595  423596  423598  423600  423604  423606  423610  423612  423616  423622  423624  423630  423634  423636  423640  423646  423652  423654  423660  423664  423666  423672  423676  423682  423690  447090 

35. A. more difficult  B. more complex   C. easier       D. closer

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34. A. only if        B. if only         C. even if       D. as if

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33. A. it           B. them          C. that         D. those

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32. A. did          B. does          C. has         D. have

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31. A. easy         B. difficult        C. useful       D. useless

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30. A. is weighed    B. are weighed    C. weighs       D. weigh

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29. A. has been to show           B. has been shown  C. has shown    D. shows

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28. A. similar     B. complex      C. public       D. different

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27. A. first few    B. few first      C. a few first     D. first a few

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26. A. difficulty   B. complexity    C. simplicity        D. difference

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