Use the correct form or tense of the verbs:
1/. Nam ( talk ) ……………………….with her many times.
2/. They enjoy ( play ) ………………………..soccer after school.
3/. I called him last night, but he ( not be ) ………………………at home.
4/. Would you mind if I ( take ) ………………………a photo ?

Một vật đặc bằng đồng được treo vào lực kế. Khi ở ngoài không khí lực kế chỉ 3,56N. Nếu nhúng một nửa vào rượu thì lực kể giảm bao nhiêu? Trọng lượng riêng của đồng là 89000 N/m³.Trọng lượng riêng của rượu là 8000 N/m³.

Một bình cao 5m chứa đầy chất lỏng, Biến áp suất đáy bình 6800 N/m. Tìm trọng lượng riêng của chất lỏng? Đó là chất gì?

Tính độ sâu của điểm A trong hồ, biến áp suất tại A gấp 5 lần áp suất mặt hồ. Biết P mặt hồ = 10000 N/m, d nước = 10000 N/m³

Complete the dialogue, and then practice it with your partner:
Vien: Hi, Duong. I read a very interesting article yesterday. It's about Lantern
Festival in China.
Duong: Really? (1)..................?
Vien: It concerns with the rebirth of nature after the cold of winter.
Duong:(2)...............................?
Vien: Lanterns mean to increase the light and warmth of the sun.
Duong: I see. ( 3 ).....................?
Vien: It is held on the fifteenth day of the first lunar month.
Duong: Oh! (4)..........................?
Vien: Exactly
Duong:( 5 )..............................?
Vien: They are hung up both inside and outside of the homes, in the streets and in
public places.
Duong: ( 6 )......................?
Vien: Yes. The lanterns brightly illuminate the night.
Duong:(7)..........................?
Vien: They fire crackers,
Duong:( 8 ).................?
Vien: Of course. As at all Chinese festivals, they eat and drink all kinds of food.

Supply the correct tense or form of the verbs in brackets:
1.The bell (ring )....................... while Tom ( take ) ........................ a bath.
2.I ( be )..................... very tired because I work )............ all day yesterday.
3.He (sit) ............... in a cafee when I ( see ) ............................ him.
4.Do you remember the film we (see)....................... last week?
5.When I was a child, I used (spend) ..................... hours playing with a tin box.
6. You must take)................... an umbrella. It (rain)...................... now.

Complete the passage with the suitable words:
HALLOWEEN IN AMERICA
Halloween was introduced to America by Irish (1).....
Around the 1840s. The holiday was also known by the name Devil's Night or Hell
Night. People played (2)...................... tricks on their neighbors. For
(3)........................, they might steal some of their eggs from the
(4).................. house. In today's times it has become more family-oriented with
Halloween (5)........................, Games like "bobbing for apples” or a contest for
the most (6)...................... costume. To bob for apples: place apples in a large tub
(7)......... ............ with water. With their hands tied behind the
(8)..................., people try to catch one of these apples using their
(9)...................... . The person catching the most (10)....................... wins the
game.

Complete the dialogue, and then practice it with your partner:
Vien: Hi, Duong. I read a very interesting article yesterday. It's about Lantern
Festival in China.
Duong: Really? (1)..................?
Vien: It concerns with the rebirth of nature after the cold of winter.
Duong:(2)...............................?
Vien: Lanterns mean to increase the light and warmth of the sun.
Duong: I see. ( 3 ).....................?
Vien: It is held on the fifteenth day of the first lunar month.
Duong: Oh! (4)..........................?
Vien: Exactly
Duong:( 5 )..............................?
Vien: They are hung up both inside and outside of the homes, in the streets and in
public places.
Duong: ( 6 )......................?
Vien: Yes. The lanterns brightly illuminate the night.
Duong:(7)..........................?
Vien: They fire crackers,
Duong:( 8 ).................?
Vien: Of course. As at all Chinese festivals, they eat and drink all kinds of food.

Complete the dialogue:
Mrs. Robinson: John, I want you to go to the flower market for me, please.
Mr.Robinson: (1).....................
Mrs. Robinson: Some peach blossoms and a bunch of flowers.
Mr.Robinson: (2).....................
Mrs. Robinson: Marigolds, because they are traditional at Tet.
Mr.Robinson: ( 3 )...................
Mrs. Robinson: No, but I need Liz to do a few things.
Liz: (4)........................
Mrs. Robinson: Are you busy?
Liz: (5) .......................
Mrs. Robinson: Yes. Go to the market and pick up some packets of dried watermelon
seeds, please.
Liz: ( 6 ).......................
Mrs. Robinson: I'm going to Mrs.Nga's. She's going to show me how to make sticky
rice balls.