----- Nội dung dịch tự động từ ảnh ----- Question 26: Good teeth help us . ... our food. * 1 điểm A. be nice B. have good eyesight O C. chew O D. be important Question 27: When food and germs collect in a small crack, our teeth 1 điểm O A. become hard O B. send poison into the blood C. begin to decay D. make us feel quite ill Question 28: A lot of people visit the dentist only when 1 điểm O A. their teeth grow properly O B. they have holes in their teeth C. they have toothache C. they have brush their teeth