单选题
We haven't heard from Jane for a long time. What do you suppose ______ to her?
A、
to happen
B、
has happened
C、
is happened
D、
happening
【正确答案】
B
【答案解析】
[解析] 考查动词的用法。happen为不及物动词,没有被动语态,排除 [C]项,通过分析,句子缺少谓语,排除[A]、[D]项。所以答案为 [B]。
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