当你想确定对方是不是刘涛时,你应该向对方说:A.Hi, Liu Tao. B.Are you Liu Tao?
( ) Have you got ________ stamps from China?
( ) We say thank you ________ all the good ________ we have.
( ) The word “easy” is ________ than the word “difficult”.
( ) My brother_______ while he_______ his bike and hurt himself.
( ) I see ________ inside the envelope.