Teenagers decide for themselves.( )
A.may be allowed toB.may are allowed to
C.may be allow to
Please turn to page _________ and look at the __________picture in this unit.
Their school has more than two _____ teachers and _____ students.
China has opened its _______Antarctic research base (南极科考站) – the Taishan Station.
She is a _____ girl with two big eyes.
Nowadays _________ of business letters are written in English . A. two thirds B. two third C. two three