The boy is to leave home.A. possibleB. probableC. likelyD. possibly

问题补充：

The boy is to leave home.

A. possible

B. probable

C. likely

D. possibly

答案：

A. possible

B. probable

(答案→)C. likely

D. possibly

解析：句意：那个男孩有可能离开家。这里是sb be likely to do 某人有可能做某事。其他的形容词没有这种句型。