Mrs.Weng came back from France in 2010. She _________ there for four years.
A.works
B.worked
C.has worked
It’s difficult for me to decide which one to choose, because ____ of them are good.
A.neither B.both
C.either D.each
My first teacher,Ms Yao,was very strict with________.
A.us B.we C.our D.ours
Lily and her sister look the same. I can't tell one from_______.
A.other B.another
C.the other D.others
There are many flowers and trees on ______sides of the Century Road.
A.each B.every C.both D.all
--Do you have enough students to clean the laboratory?
--No, I think we need____________ students.
A.another B.two others
C.more two D.two more