Pieces of bamboo or wood ________ books between 2nd and 5th century AD.A. used to formed B. used to formC. were used to form D. used to beforming
I have got four day's holiday to Paris. I _______ my father.
---- I wonderyou will water this kind of flower. ---- Every other day.
Tom is good a studenthe is often praised by the teacher.
The girlis singing an English song in the next room is Tom’s sister.
is known to us all, he is an excellent student in our class.