Trả lời

2. Why do children often have a toothache?

⇒Because they eat lots of candy.

3. Why do you be late for class yesterday?

⇒Because I miss the first bus.

4. Why does her tooth hurt? 

⇒Because she has a cavity.

5. They did not come to the meeting last night?

⇒Because they're busy.

6. Why did she go to the doctor?

⇒Because she has a headache.

7. Why does Minh not say anything yesterday?

⇒Because he by very nervous.

8. Why do we need to brush our teeth after meals?

⇒Because they want to have healthy teeth.

Giải thích

·Những từ cho sẵn mình gạch chân để bạn biết.

·Ở câu 4 và 6 người ta cho have nhưng mình dùng has vì have chỉ dùng cho số nhiều(VD:I/You/We/They/...)còn has dùng cho số ít(She/He/It/...) nên ta dùng has thay cho have.

·Có j ko hiểu bạn cứ hỏi mình nha.

Xin hay nhất ạ.

2. Why do children often have a toothache?

⇒Because they eat lots of candy.

3. Why do you be late for class yesterday?

⇒Because I miss the first bus.

4. Why does her tooth hurt? 

⇒Because she has a cavity.

5. They did not come to the meeting last night?

⇒Because they're busy.

6. Why did she go to the doctor?

⇒Because she has a headache.

7. Why does Minh not say anything yesterday?

⇒Because he by very nervous.

8. Why do we need to brush our teeth after meals?

⇒Because they want to have healthy teeth.