697.With some books he needed _______,he went into the bookstore quickly.
A.to buy
B.bought
C.to be bought
D.buying
698.Nearly half a million people are believed _______ their homes as a result of the disaster.
A.to leave
B.to be left
C.to be leaving
D.to have left
697.答案是A;考查with复合结构；with+宾语+不定式。
698.答案是D;考查非谓语动词。请注意:It's+believed等过去分词+that从句与sb./sth.is+believed等过去分词+动词不定式to do sth./to be doing sth./to have done sth.两种句型的转换。
