填空题Questions 14-18 ·Using, the information in the text, complete each sentence 14-18 with an expression from the list below. ·For each sentence (14-18). mark one letter (A-G) on the Answer Sheet. ·Do not mark any letter twice.
A. time zones
B. natural light
C. protection
D. discomfort
E. cost
F. essentials
G. motion sickness
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It's not true that flu vaccine provides you with for the whole life.
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When traveling you need to take a bag with necessary ______.
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When traveling by plane you plane you may have to go across different ______.
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A factor in the unpleasantness of traveling may be ______.
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You may join a medical foundation without any ______.