Is your mother a worker? No. she __________.A used to B was used to C used to be D used
The old man__________ cancer. His made us very sad.
We live in peace, all the Chinese people hope that the war between China and Japan won’t _______ again.
Tan Dun is _______ an excellent composer _______ he can make music without boundaries.
It’s reported that several young children have gone _________in Taizhou, their parents feel very sad about the _______ of them.
Take a map of New York with you while traveling ________ you have a guide or know the city well.