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56. You cannot __________ the trains; they are always late.
57. The disease spread everywhere, into villages, _________ into the cities.
58. Scientists have found that acid rain __________ the lakes and forests.
59. Students should be taught how to _________ their dictionaries while reading.
60. In summer people love to wear dark glasses to _______ their eyes _____ the sun.
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56. You cannot __________ the trains; they are always late.
57. The disease spread everywhere, into villages, _________ into the cities.
58. Scientists have found that acid rain __________ the lakes and forests.
59. Students should be taught how to _________ their dictionaries while reading.
60. In summer people love to wear dark glasses to _______ their eyes _____ the sun.
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