1.（ )I'm afraid I __________a little late.A.maybe B.may be C.can't be D.can be2.___________(骑) the bike to work is good for our health,I think.
问题描述：
1.（ )I'm afraid I __________a little late.
A.maybe B.may be C.can't be D.can be
2.___________(骑) the bike to work is good for our health,I think.
答
1.（ B )I'm afraid I __________a little late.
A.maybe B.may be C.can't be D.can be
记住 放在句头是maybe 放在句中是may be
2._____Riding______(骑) the bike to work is good for our health,I think.
动名词作主语
答
1。B
maybe是副词，意思是“也许、可能”，在句中作状语，相当于perhaps，常位于句首。在may be中，may是情态动词，be是动词原形，两者构成完整的谓语形式，与主语形成系表结构，意为“也许是、可能是”。
2。to ride、riding
不定式和现在分词短语都可以作主语
答
1.B 1）maybe是副词,主要用于非正式场合,口语中常用.意为“也许,大概”.它通常放在句子的开头,在句子中作状语.如：Maybe they won't come here tonight.他们大概今晚不会来这儿.Maybe she is happy.也许她是幸福的.2...
答
1.B
2.Riding
第一题我是语感，第二题，应该填一个非谓语动词，因为后面是 is