I. Viết câu hỏi cho các từ gạch dưới trong các câu sau.

1. These students go camping once a month.

...How often do these students go camping?......................................................................................

2. He's going to help the elderly people at the hospital.

who is he going to help at the hospital?...........................................................................................

3. They are going to visit Ha Noi this summer.

..where are they going to visit this summer?..........................................................................................

4. Lan enjoys playing badminton in her free time.

what does lan enjoy in her free time?..........................................................................................

5. Nam should play sports to keep fit.

what should nam do to keep fit.....?...................................................................................

6. I want to listen to some music because I'm bored.

..why do you want to listen to some music?.......................................................................................

7. Ba and his friends in the club are talking about their English stamps.

what are ba and his friends in the club talking about?..........................................................................................

8. Hoa often helps her mother cook dinner after school.

..what does hoa often help her mother after school?.......................................................................................

9. Lan is watching TV in her room.

...where is lan watching?......................................................................................

10. Hoa is sick today because she works too much.

.....why is hoa sick today?................................................................................

a)Số số hạng của tổng là:
   (20 - 1) + 1 = 20 (số)
   Tổng của dãy số trên là:
    (20 + 1) x 20 : 2 = 210
b) Số số hạng của tổng là:
      (100 - 2) : 2 + 1 = 50 (số)
   Tổng của dãy số trên là:
      (100 + 2) x 50 : 2 = 2550
    Bài làm như thế này mới đúng! câu b) Tuyệt thế kỳ tài làm sai rồi!

Ta có: (7 - x) . (x + 19) = 0
            => 7 - x = 0
         hoặc x + 19 = 0
* Nếu 7 - x = 0 => x = 0 + 7 = 7
* Nếu x + 19 = 0 => x = 0 - 19 = -19
Vậy x = 7;-19.  

past simple or present perfect ?put the verd in brackets into the correct form

1 they (clean) cleaned the beach one week ago

2 they (collect ) have collected hundreds of books so far

3 i (collect) collected stamps when i was a child

4  she (fly) has flied to da nang many times but last year she ( go )  wentthere by train

5Have you ever (see)seen a real lion?no ,but i (see) saw a real elephant when we went to the zoo last month

Chiều rộng mảnh đất là:

18 x 2/3 = 12 [met]

Diện tích mảnh đất là:

18 x 12 = 216 [ mét vuông]

Diện tích làm nhà là:

216 x 20 : 100 = 43.2 [mét vuông]

      Đáp số : 43.2 mét vuông

sắp xếp dùm nha

it is furnished / The kitchen / because / is very modern / everything /.

the kitchen is very morden because it is furnished everything....

come home / always happy / I forget / and I am / all my cares / when I /.

when i come home i forget all my cares and i am always happy

takes care of / Her father / sick chirden / anh\d he / is a doctor /.

her father is a doctor and he takes care of sock children 

at number 27 / is the most suitable / on HVT street / The aperment / for his family

the aperment at number is the most suitable for his family on HVT street...

on our farm / is a farmer / in the countryside / my father / and he works

my father is a farmer and he works on our farm in the countryside

Hãy cho dạng đúng của những từ trong ngoặc 

I:        Excuse me. Can Iask you some quesions about this health club ?

K :      Yes, of course.

I         Fist of all. Why do you come to the health cflub ?

K        Because I fell  fit...........  (fit) and unhealthy............  (healthy )

I         Fine . And how can we make the health club better ............  ( good ) than it is now ?

K        Hmm. We need big .........  ( big ) changing rooms. They " re ..badly.........  ( bad )

          part of the club. Yes , the changing rooms are importantly ...........  ( important ) thing for me.

I         I see. What about lowing ............  ( low ) prices ?

K       Yes, this is the most expensive   ......... (expensive ) club in the town . The Youth club is the largest..........  ( large )

         but It"s the cheapest ...........  (cheap ). Its is about 30.000 VND a month.

I        Good, thank you very much.

I . choose the best answer

1. Why .don't........... we go to the movie ? good idea 

2 .Does ........ your friend like hot drink ?

3 . Lan and Nam .play... tennis on the playground

4 . He usually plays.......... in the morning 

5 . The weather ..is.......... fine today . The sun .is shining................

have no home