... unhealthy2. a. dentist b. doctor c. teacher3. a. on b. with c. by4. a. on b. to c. at5. a. to clean b. clean c. cleaning6. a. should b. ought to c. a & b7. a. for b. at c. on TLBT8 BTCB 19 CC110bChoose ... There are many people (on, at, upstairs) the meeting.7. She covered her knees (with / under) a blanket.TLBT8 BTCB 18 CC11 0a CC 110Read the passage and choose the word (a, b, c, d) that best ... a year. Secondly, we should brush our teeth __ (3) ____ a toothbrush and fluoride toothpaste at least twice a day, once after breakfast and once before we go __ (4) ____ bed. We can also...