`text{3. about}`
`text{4. for}`
`text{5. of}`
`text{6. at}`
III
`text{1.... because I was sick.}`
`text{2.... because he has a toothache.}`
`text{3.... because she brushes her teeth after meals.}`
`text{4.... because they often eat a lot of candy.}`
`text{5.... because his decaying tooth stopped hurting.}`
`text{6.... because it's good for our health.}`
`text{CHÚC BẠN HỌC TỐT!}`
`text{@tranhuulam2k9}`
