1. Why is he scared?
⇒ Because he hates the sound of the drill.
2. Why do the children often have toothache?
⇒ Because they eat lots of candy.
3. Why were you late for class yesterday?
Because I missed the first bus.
4. Why does her tooth hurt?
⇒ Because it has a cavity.
5. Why didn't they come to the meeting last night?
⇒ Because they were busy.
6, Why does she go to the doctor?
⇒ Because she has a headache.
7. Why didn't Minh say anything yesterday?
⇒ Because he was very nervous.
8. Why do you brush your teeth after meals?
⇒ Because we want to have healthy teeth.
