—Jack is doing nothing at all but study Chinese.
—As far as I know, he is to study abroad, perhaps China.
A. possible
B. likely
C. impossible
D. unlikely
网友回答
A. possible
(答案→)B. likely
C. impossible
D. unlikely
解析：句意：--杰克现在什么都没有做除了学习汉语外。--据我所知，他可能在国外学习也许是在中国。possible可能；likely可能；impossible不可能；unlikely不大可能。
It is/was+possible/impossible+(for sb)+to do; S+be+ likely/ unlikely +to do;它们都有的句型是It is/was+～+that-clause;根据句意故选B。