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        1. __________ Tom __________ Sam may go with you because one of them must stay at home.
          A. Both; and           B. Either; or            C. Not only; but also
          B

          試題分析:句意:或者湯姆或者塞姆可以和你去,因為他們中的一個必須要待在家里。Either…or…或者…或者…,Both…and…兩者都…,Not only…but also…不僅…而且…。結(jié)合句意可知,本題選B。
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