Cho 𝛥ABC vuông tại A ( AB < AC) có K là trung điểm BC

a/ Nếu AB = 9cm, AC = 12cm. Tính BC và AK

b/ Lấy E đối xứng A qua K. Chứng minh: Tứ giác ABEC là hình chữ nhật

tại sao em thích phong trào đấu tranh của nhân dân trung quốc cuối thế kỷ 19 đầu thể kỷ 20 (mn giúp em với ^^)

This math exercise is too difficult for her to do.
--> This math exercise is not

My silk dress is red and beautiful.
--> I have

She plans to buy another motorbike.
→ She is

Paul did his homework alone.
--> Paul did

I am ……………….. enough to  have a lot of friends . (luck)

. Alice played the piano very ………  yesterday . (beauty)

The company employs several ………………(emigration)

 Brenda wanted to ……her sympathy in a practical way. (demonstration)

Who ………………….……… the Internet? (inventor)

 I found his talk very………………………. (interest)

một công ty A dự định nhập về 5 tấn nhãn . giả sử trong quá trình vẩn chuyền 10% số nhãn trên bị hư hỏng và số nhãn còn lại bán được hết .Tính tổng số tiền bán ra số nhãn trên biết giá mỗi kg nhãn 42.000 đồng

Câu 2: He received permission to ………………….. to  Malaysia.

A

reach

B

emigrate

C

agree

D

deliver 

Câu 3: His University  is having  an ………………of the students’ paintings in July.. 

A

fax machine

B

exhibite

C

exhibition

D

to exhibite

Câu 4: The system ………………….. information  over digital phone lines. 

A

transmits

B

invents

C

conducts

D

reaches

Câu 5:

Question 20: Nam and Quang are going________ to the supermartket this afternoon.

A

go

B

to going

C

to go

D

goes

Câu 6: Can I speak to Mr. Johnson, please  - “………………….………”

A

No, you can’t        

B

He’s Mr. John

C

Yes, you can.

D

Hold on, please          

Câu 7: The………….. were waiting for the supermarket open  early in the morning.

A

Emigrant

B

Customers

C

Assistant

D

Orders

Câu 8: It was still dark …………… when I got up last night.

A

there

B

here

C

on

D

outside

Câu 9: My son was born ………………….. July 1st, 1998.

A

in

B

at

C

until

D

on

Câu 10: Anybody know ………………….. Micheal  is these days?

A

where

B

when

C

why

D

who

Câu 11: We started ………………….. English in 2000.

A

learning

B

learn

C

learned

D

to learning

Câu 12: - My mother is sick  in hospital.  - “………………….……..”

A

I’m sorry to hear that

B

Oh, she is unlucky       

C

I don’t think so

D

No problem    

Câu 13: Our classmates  did a(n)………………….. to test the acidity of the soil. 

A

stationery

B

volunteer

C

experiment

D

orphanage

Câu 14: Will  you  come  to  my  party  tonight. - ………,  but I’ll  have a meeting.

A

I’d love to

B

I will come

C

I’d like coming

D

I like it 

Câu 15: Marconi  was the ………………….. of radio.

A

invented

B

invention

C

inventor

D

invent

Câu 16:

 Tom will come ______ and pick Nancy up at 5 PM.

A

in

B

out

C

over

Câu 17:

Her Mom………………..a message saying she would probably be a little late. 

A

took

B

lelf

C

followed

D

called

Câu 18: Tommy enjoyed French ………………….. He wasn’t very good at it. 

A

because

B

although

C

and

D

but

Câu 19: My brother will come over and pick her ________ at 300 tomorrow.

A

at

B

with

C

on

D

up

Câu 20: The laboratory began  doing   experiments on rats. 

A

carrying out         

B

All are correct.

C

conducting

D

performing            

D

outside

Câu 1: Would you like ………………….. the summer in Italy?
A.spending
B.spend
C.to spend                
D.to spending