I.Chuyển 4 câu sang dạng phủ định , sang câu hỏi và trả lời theo 2 cách yes no: 1.We have english classes on monday and friday. 2.He always does his homework after dinnes. 3.How many balls does Nam have? 4.His father and mother are engineers.

1. (- ) We don't have English on Monday and Friday

    (? ) Do you have English on Monday and Friday ?

⇒ Yes, We do

⇒ No, We don't

2. (- ) He always doesn't do his homework after dinner

    (? ) Does he always do his homework after dinner ?

⇒ Yes, he does

⇒ No, he doesn't

3. (- ) Nam doesn't have many balls

    (? ) Does Nam have many balls ?

⇒ Yes, he does

⇒ No, he doesn't

4. (- ) His father and mother aren't engineers

    (? ) Are his father and mother engineers ?

⇒ Yes, they are

⇒ No, they aren't

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Cấu trúc thì HTĐ với V tobe :

(+) S + is/am/are + O

(- ) S + is/am/are + not + O

(? ) Is/am/are + S + O ?

Yes/No answer :

- Yes, S + do/does/are/is

- No, S + do/does/are/is + not