mary writes as----as her brother 1.careful 2.more carefil 3.

虞其君英语
Mary writes as____as her brother.
1.careful 2.more carefil 3.carefully 4.more carefully
答案：3
解析：as + 形容词或者副词+as 表示“和.一样”
在本句中,write表示“写”的意思,为动词,所以要用副词carefully.