一、 写出下列动词的第三人称单数 drink drinks go goes stay stays make makes look looks have has pass passes carry carries come comes fly flies study studies do does 二、写出下列动词的现在分词 play playing run running go going like liking write writing ski skiing read reading have having sing singing put putting see seeing buy buying live living take taking get getting sit sitting 三、写出下列动词的过去式 is\am was fly flew plant planted are were drink drank play played go went make made do did ask asked taste tasted eat ate draw drew put put throw threw pass