EX 1: Fill in the blanks with suitable prepositions.( in, on, of, to, at, about…..)
1. My mother takes care…of...the family.
2. I smiled.........the child and said " Hello".
3. She always worried.............her children.
4. Milk is good......your health.
5. Most children are scared.............seeing the dentist.
6. The dentist looked .........my teeth.
EX 2: Give the correct form of verbs.( chia động từ)
1. The dentist (fill)…………………the cavity in my tooth yesterday.
2. What’s the matter, Minh? I ( have)…………….a toothache.
3. The students ( not go) …………..to school last week.
4. What ………..you( do)…………last night? I ( do) …………my homework.
5. We should ( brush )……………..our teeth twice a day.
