Question

I don't know where Jack is now. ________ is in the cinema.

1. A.
   Maybe he
2. B.
   May be he
3. C.
   He may be
4. D.
   He might be

Answer 1

A
副詞maybe常見于美國英語中，在句中用作狀語，意為“很可能”“大概”，相當于英國中的perhaps，常放于句首。may be是“情態(tài)動詞+動詞原形”的形式，在句中作謂語，意為“可能是”。