mary's ruler is much longer than______ A.are all B.are both

mary's ruler is much longer than______ A.are all B.are both A：whose ruler is longer.B：They are _____ _____.他的图是两根尺子一样长. Li Lei's parents _____doctors.A.are all B.are both C.all are Mary’s ruler is much longer than [mine]. 括号中为什么用mine. 请解析. We ___ friends A are both B are all C both are D all are 比较级 做什么句子成分 Mary's ruler is much longer than mine.请问is后面一块做什 They ___farmers. A. are all B. all are C. are both D. both a They ()very busy.a:both.b:all are.c:are both.d:are all. the twins ( ) lovely girls.A.are all B.are both C.both are D ______ ruler is longer?They are ____ ____. Here ( )your ruler.A.is B.are C.it's Dits 选择最恰当的答案my parents____teathers.A.both are B.are both c.all a