2. 外语
  3. Bob fails to attend the evening school. He______sick, because he never asks for leave.

Bob fails to attend the evening school. He______sick, because he never asks for leave.

admin2019-08-27  50
问题 Bob fails to attend the evening school. He______sick, because he never asks for leave.
选项 A、maybe
B、can be
C、must be
D、is
答案C
解析 句意为：Bob没有参加夜校，他一定是生病了，因为他从来没有请假离开过。根据后半句可知，推测的是肯定的情况，故选C项，表示“确定，一定”。
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