100 trees must before March 12.A、plantB、be plantingC、be planted
— _______ have you lived in Wuxi? — Since I was born.
I bought _______ English-Chinese dictionary. _______ dictionary is very useful.
The elderly should _________ politely. Also, they must ___________ well.
My cousin has _______ Project Green Hope since two months ago.
This magazine ______ out _____ the morning of March 1st.