问题
选择题
Tom with his grandmother for eight years，but now he is living by himself.
A．lives
B．1ived
C．has lived
D．has been living
答案
答案：B
考查时态。根据语境可知汤姆过去与他奶奶生活8年，故用一般过去时态。句意：汤姆与他奶奶生活了8年，但现在独自生活了。
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