I’ll spend as much time as I can ____ after the flowers in the garden.
It’s not polite to read through _________ letters.
---Some students think maths is __________ than Chinese.---I agree. I’m poor in Chinese.
______ Lily ______ Lucy likes listening to Beijing opera while their parents do.
It’s very cold these days. Sometimes the temperature falls ________ zero.
About ________ of the teachers in our school were born in ______________.