Khi đóng đinh vào tường thì đinh tác dụng lên tường

The students are learning road signs in the school yard

=> What are the students learning in the school yard ?

Ta có :

\(\begin{cases}\frac{a}{b}=\frac{2}{7}\\\frac{b}{c}=\frac{14}{15}\end{cases}\)\(\Rightarrow\frac{a}{b}.\frac{b}{c}=\frac{2}{7}.\frac{14}{15}\)

\(\Rightarrow\frac{a}{c}=\frac{4}{15}\)

Vậy tỉ số giữa a và c là 4 / 15

Thể tích quả cầu là :

145 - 118 = 27 ( cm³ )

Trọng lượng của quả cầu là :

0 , 18 x 10 = 1 , 8 ( N )

Trung usually rides his motorbike very carefully

=> How does Trung ride his motorbike ?

My father used to go finishing in the pond near the woods.

=> What did your father use to do ?

a. Ba is always interested in stamps. (always)

...

b. Nga often rehearses a play with her friends. (often)

...

c. Nga never plays video games. (never)

...

d. Nam, Ba and Hoa are never late for their class. (never)

...

e. Ba and his friends often get together and talk about their stamps. (often)

...

f. After class, Nam usually goes home and watches videos. (usually)

...

g. What do you usually do after school? (usually)

...

h. I usually help my mother with the house work. (usually)

...

i. I never go swimming on Sundays. (never)

...

j. Ba's friends sometimes give him stamps from other countries. (sometimes)

...

1.She lives.............her uncle .........................12 Le Loi street

A.With/on B.With/at C.at/on D.at/at

2.she lives in Ha Noi but her parents..................in Hue

A.Still live B. live still C.live D.A&C

3.My mother never......................milk for breakfast

A.Drink B.Eat C.Drinks D.drinking

4.she is having a birthday party...............June 28th

A.in B.on C.of D.at

5.This is Tam. Who's.................,please?

A.calls B.call C.calling D.to call

6.Her birthday party will..................at 6 o'clock next Sunday

A.start B.Starts C.finishes D.finishing

7.His birthday is August ..............

A.Twenty-five B.twenty fifth C.The twenty-five D.the fifth and twenty

8.There are 38...........in my class

A.Person B.student C.Teacher D.pupils

9.She alway comes to class on time.She's never................for school

A.Free B.busy C.early D.late

10.The party will.............about three hours

A.Last B.Start C.Finish D.Invite

11..................I speak to Mr.Brown ?-Hold on a minute, please

A.should B.Shall C.Can D.Will

12.I hope he...............to the party

A.Will come B.Come C.Coming D.Comes

13..............does the plane fly?It flies at 600 miles an hour

A.How far B.How fast C.How long D.How often

14.Tomorrow.................Sunday.We'll go on a picnic

A.will be B.Is C.Be D.Will

15.April is the............month of the year

A.forth B.fourth C.Third D.First

16.Will you be free on Sunday ?

A.Not at home B.Not busy C.Not late D.Not far

17.I think she ...................the party tomorrow

A.Will enjoy B.Enjoy C.Enjoys D.To enjoy

18.................does the play start ?.I think is starts at 7:30

A.what B.How C.When D.Where

19.I'd like to make a...........to 8526745, please

A.ring B.Call C.Phone D.Answer

20 Would you like a cup of tea, please?

A.yes,please B.I like, too C.yes, I will D.You're welcome

1. It took Nam fifteen minutes to walk to school this morning

=> How long does it take Nam to walk to school this morning ?

Nguyệt thực