can 因为只有它可用在问句中表推测 .may不用于问句可用于肯定句和否定句的推测.如
there is a book,whose can it be?
it may be Tom's.
mr li may not come by bus because he likes driving.
can 因为只有它可用在问句中表推测 .may不用于问句可用于肯定句和否定句的推测.如
there is a book,whose can it be?
it may be Tom's.
mr li may not come by bus because he likes driving.