英语难题3（请从语法角度详解）非常感谢~

题目

英语难题3（请从语法角度详解）非常感谢~
33.as I ______ housework,my husband_____ asleep.
A.did…was falling B.was doing…fell C.was doing…was falling D.was doing…falls
46.the number of the people speaking English_______.
A.is rising B.are rising C.is raising D.are raising
52.________ of the girls can play the piano.
A.not every B.not all C.no each D.no one

答案

33.B 当我正做家务时,我丈夫睡着了.
46.A.说英语的人数在增加．
the number of ．．．的数． 谓语用单数．
52.B 并非所有的女孩都会弹钢琴