Unit 3:
empty
feed
sweep
dust (v)
tidy
cook
wash
cover
Exercise 1:
I. Fill in the blanks with the suitable verbs in the correct tense or form.
feed rub empty dust
cook wash
1. My mother ……………………….the furniture every day.
2. She ……………………….…….the garbage two days ago.
3. Would you like to come for dinner? I ……………….…..……..a hearty dinner tonight.
4. He ………………the rugs last Sunday.
5. They …………………..….the dishes now.

dusts
emptied
am going to cook
rubbed
were washing
I. New words
Empty (v) làm rỗng
Feed (v) cho ăn
Wash (v) giặt, rửa
Cover (v) che lại
Dust (v) phủi bụi
Sweep (v) quét
Tidy (v) dọn dẹp
Rub (v): gấp lại

eletrical socket (n) ổ cắm điện
rug (n) thảm
garbage (n) rác

cupboard
refrigerator
steamer
rice cooker
oven
cassette player
saucepan
Dish washer
washing machine
pot
Exercise 2: Put the words into the suitable groups
cupboard, refrigerator, armchair, coffee table, couch, saucepan, bed, stereo, pot, wardrobe, oven, steamer, cassettte player, rice cooker, dish washer, washing machine
Cupboard, refrigerator, armchair, coffee table, couch, saucepan, bed, stereo, pot, wardrobe, oven, steamer, cassette player, rice cooker, dish washer, washing machine
II. Cấu trúc
S + must + V(infinitive)
Ex: You must stop when the traffic light turns red.
Have to / has to :
He /she/ It + has to + V(infinitive)
I / We/ You/ They + have to + V(infinitive)
You have to take some medicine when you are sick.
III.Cách dùng
must
Người nói nghĩ là cần thiết
Ý kiến cá nhân
Quy luật hay hướng dẫn
have to
Người khác nghĩ là cần thiết
Bắt buộc từ bên ngoài
Sự thật , không phải ý kiến
Exercise 3: Complete the sentence with must or have/ has to. Sometimes both are possible.
Vietnamese children ………..…….wear uniform when they go to school.
Last night my sister was ill. We ………………………..call the doctor.
I have bad toothache. I ………………make an appointment with the dentist.
I don’t want to …………………wait in a quee for ages.
She …………………work on Saturday morning.
When you come to California, you…………………come and see us soon.
This is a terrible party. We …………………go home.
Danniel ………………go to the bank.He hasn’t any money.
had to
have to
have to
have to
must
has to
have to
has to
Thanks for your listening!