e hk tham gia

tui đây nè-_-

tui dag nhắn mà ông bơ tui luôn

chán thấy mẹ

ông bỏ rơi tui mà còn kiu nữa

mấy nay buồn thấy mẹ

I’ll show you around the city, when you _________  to visit me.

A. come     

B. are coming       

C. will come         

D. will be coming

Cho biết các phản ứng xảy ra sau:

( 1 )   2 F e B r 2 +   B r 2 → 2 F e B r 3

( 2 )   2 N a B r   +   C l 2 → 2 N a C l   +   B r 2

Phát biểu đúng là:

A. Tính oxi hóa của Br₂ mạnh hơn của Cl₂.

B. Tính khử của C l -  mạnh hơn của B r -

C. Tính khử của  B r -  mạnh hơn của F e 2 + .

D. Tính oxi hóa của Cl₂ mạnh hơn của  F e 3 +

Read the following passage and mark the letter A, B, C or D on your answer to indicate the correct word or phrase that best fits each of the numbered blanks from 01 to 10.

Early writing and Alphabets

When people first began to write, they did not use an alphabet. Instead, they drew small pictures to (01) ______ the objects they were writing about. This was very slow because there was a different picture for (02) ______ word.

The Ancient Egyptians had a (03) ______ of picture writing that was (04) ______ hieroglyphics. The meaning of this writing was forgotten for a very long time but in 1799 some scientists (05) ______ a stone near Alexandria, in Egypt. The stone had been there for (06) ______ a thousand years. It had both Greek and hieroglyphics on it and researchers were finally able to understand what the hieroglyphics meant.

An alphabet is quite different (07) ______ picture writing. It (08) ______ of letters or symbols that represent a sound and each sound is just part of one word. The Phoenicians, (09) ______ lived about 3,000 years ago, developed the modern alphabets. It was later improved by the Roman’s and this alphabet is now used (10) ______ throughout the world

Điền vào ô 5

A. discovered                 

B. realized            

C. delivered                   

D. invented

minh la nguoi **** cho ban den 3 lan rui do