Now most families have only one child _____ our country’s one-child policy.
I think _____ necessary to accept his advice because it’s of great ______ to me,
—I noticed Lily _____ a pink dress at the party. —I think she looks better_____ red.
— __________ terrible mess you have made! — Sorry. I will clear it up right now.
The number of the teachers in our school ____ over 400, and ____ of them are women teachers.
______ Saturday ________ Sunday is OK. I’ll be free then.