题目内容
________ under the tree? No，they aren’t.
A．Where are B．Are they C．Is it
B
解析试题分析：句意：他们在树下面吗？不，他们不在。 根据答语No，they aren’t.可知问句是一般疑问句，故排除A项。因为主语是they，故排除C项。故选B。
考点：考查疑问句的用法。
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