Put the verbs in brackets in the correct verb tense. 1. Be careful! The teacher (look) at you. 2. The boy (learn) for three years, but he can't understand this letter. 3. How long (you/know) Paul? - I (know) him for five years. 4. (she/feed) the cat yet? 5. We (not see) Lan since we (be) on holiday last summer. 6. (she/finish) her homework yet? 7. (your dog/ever bite) anyone? - Yes, he (bite) the postman last month. 8. Would you like some coffee? I (just/ make) some. 9. (you/ ever be) to Ha Noi? 10. Our school performance (start) late last Sunday because of the heavy rain.

1. Be careful! The teacher (look) is looking at you.

( Hiện tại tiếp diễn - Dấu hiệu nhận biết: be careful)

2. The boy has learnt (learn) for three years, but he can't understand this letter.

( Thì hiện tại hoàn thành)

3. How long have you know (you/know) Paul? - I have known (know) him for five years.\

( Thì hiện tại hoàn thành)

4. Has she feed(she/feed) the cat yet?

(Thì hiện tại hoàn thành - Dấu hiệu nhận biết : yet)

5. We haven't seen (not see) Lan since we (be) have were on holiday last summer.

(Vế trước: Thì hiện tại hoàn thành - Dấu hiện nhận biết: Since)

(Vế sau: Quá khứ đơn - last summer)

6. Has she finished (she/finish) her homework yet?

( Thì hiện tại hoàn thành - Dấu hiệu nhận biết: yet)

7. Has you dog ever bitten (your dog/ever bite) anyone? - Yes, he bit (bite) the postman last month.

(Vế trước: Thì hiện tại hoàn thành)

(Vế sau: Thì quá khứ đơn)

8. Would you like some coffee? I have just made (just/ make) some.

(Thì hiện tại hoàn thành)

9. Have you ever been (you/ ever be) to Ha Noi?

(Thì hiện tại hoàn thành)

10. Our school performance (start) started late last Sunday because of the heavy rain.

(Thì quá khứ đơn - Dấu hiệu nhận biết: late last Sunday)