My mother was badly ill in hospital yesterday. I had to look after her, so I didn't go to have the picnic.
______.( )
A.Never mind
B.I am sorry to hear that
C.No problem
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