Read and circle the best option A,B,C ỏ D  to complete to passage:

Everyone (1) .....oranges. They are quite sweet and juicy. They are in sections so (2) ........ is very easy to eat them.  Some oranges (3) ......... not have seeds. Some (4) ......... thick skins and some have thìn skins. The oranges tree is beautiful. It has a lot of (5)...........leaves. The small white flowers smell very sweet. (6) ........... oranges tree has a lot of flowers  and fruit at the same (7) ......... " Orange" is both a fruit (8) ............. a color. The (9)............. of orange is so beautiful that in English we use the name of the fruit (10) ........ the color.

1. A. Love B. To love C. Loves D. Loving

2. A. They B. It C . Oranges D. Its

3. A. Do B. Does C. Is D. Are

4. A. Have B. Wear C. Put D. Take

5. A. Yellow B. Green C. Red D.  Blue 

6. A. A B. An C. Some D. Không ý nào đúng

7. A.Morning B.afternoon C.evening D. Time

8. A.But B. Or C. And D. With

9. A. Color B. Seeds C. Tree D.Leaf

10. A. To B. At C. From D. For

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+) Trong lực là gì ?

=> Trọng lực là lực hút của Trái Đất tác dụng lên vật

+) Trọng lực có hướng và chiều như thế nào ?

=> Trọng lực có phương thẳng đứng ,chiều từ trên xuống dưới , điểm đặt tại tâm của vật

Choose one word that has the underline part pronounced differently from the others bye circling A B C D .

1. A.Invitation B. Intersection C. Station  D.question

2. A. Lives B. Misses C. LanguagesD. Watches

3. A. Between B. Behind C. Bakery D. Geography

pet/some/funny/stories/They/are/about/reading

=> They are reading about some funny pet stories

Supply the correct form OF the verbs in the brackets:

1. Look! Theplane is flying towards the airport. Italia (land) is landing

2 . Mr Tung is a teacher and he(not have )  isn't having classes in the afternoon.

3. You mustn't (eat) eat food in the canteen.

4. THE Nile River (flow) flows to the Medirterranean Sea. 

5. MrsThuy is cleaning the windows and doors. Let's (help ) help her.

I/you/very/much/miss/Mom

=> I miss you very much , Mom

How many hours does he work a day ?

\(x\times15-x-9-x=15\)

\(\Rightarrow x\times15-\left(x+9+x\right)=15\)

\(\Rightarrow x\times15-\left(2x+9\right)=15\)

\(\Rightarrow x\times15=15+2x+9\)

\(\Rightarrow x\times15=24+2x\)

\(\Rightarrow x\times15-2x=24\)

\(\Rightarrow x\times\left(15-2\right)=24\)

\(\Rightarrow x\times13=24\)

\(\Rightarrow x=24:13\)

\(\Rightarrow x=\frac{24}{13}\)

Vậy \(x=\frac{24}{13}\)

Câu 1 :

Gọi số học sinh khối 6 là a ( \(200\le a\le400\) ; \(a\in\) N )

Theo bài ra ta có : 

+) \(\left(a-5\right)⋮12\) 

+) \(\left(a-5\right)⋮15\) 

+) \(\left(a-5\right)⋮18\)

\(\Rightarrow\left(a-5\right)\in BC\left(12;15;18\right)\)

Ta có : \(12=2^2.3\)

            \(15=3.5\)

             \(18=3^2.2\)

\(\Rightarrow BCNN\left(12;15;18\right)=3^2.2^2.5=180\)

\(\Rightarrow B\left(180\right)=\left\{0;180;360;720;...\right\}\)

Vì \(200\le a\le400\)

\(\Rightarrow a=360\)

Vậy số học sinh khối 6 là 360 em

Câu 2 : 

a) \(\left(2x+1\right)^2=16\)

\(\Rightarrow\left(2x+1\right)^2=4^2\)

\(\Rightarrow\begin{cases}2x+1=4\\2x+1=-4\end{cases}\)

Trường hợp 1

\(\Rightarrow2x+1=4\)

\(\Rightarrow2x=4-1\)

\(\Rightarrow2x=3\)

\(\Rightarrow x=3:2\)

\(\Rightarrow x=1,5\)

Trường hợp 2 :

\(\Rightarrow2x+1=-4\)

\(\Rightarrow2x=\left(-4\right)-1\)

\(\Rightarrow2x=-5\)

\(\Rightarrow x=-5:2\)

\(\Rightarrow-2,5\)

Vậy \(x=\begin{cases}-2,5\\1,5\end{cases}\)

b) \(x-\frac{12}{4}=\frac{1}{2}\)

\(\Rightarrow x=\frac{1}{2}+\frac{12}{4}\)

\(\Rightarrow x=\frac{7}{2}\)

Vậy \(x=\frac{7}{2}\)

Câu 3 :

\(\frac{7}{8}.\frac{64}{49}-\frac{64}{49}:\left(-\frac{3}{7}+\frac{5}{13}+-\frac{4}{13}\right)\)

\(=\frac{7}{8}.\frac{64}{49}-\frac{64}{49}:\left(-\frac{3}{7}+\frac{1}{13}\right)\)

\(=\frac{7}{8}.\frac{64}{49}-\frac{64}{49}:-\frac{32}{91}\)

\(=\frac{7}{8}.\frac{64}{49}-\frac{64}{49}.-\frac{91}{32}\)

\(=\frac{64}{49}.\left[\frac{7}{8}-\left(-\frac{91}{32}\right)\right]\)

\(=\frac{64}{91}.\frac{119}{32}\)

\(=\frac{34}{13}\)