đổi 108 tấn=1080 tạ

ta có:1080:90=12

=> cần 12 chuyến xe để chở hết số gạo đó

Bạn và các bạn cùng lớp muốn lớp học trở thành một nơi 'xanh'. Viết 5 quy cho các thành viên trong lớp để tuân theo. Bạn có thể đọc lại Unit 11 để lấy ý tưởng.

cong tu ho nguyen toan chep bai cua nguoi khac chu trinh ga cong nghiep nhu may sao lam noi bai nay

is walking

* Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that bestfits each of the numbered blanks from 31 to 35.

How men first learnt to (31) .................. words is unknown; in other words, the origin of language is a mystery. All we really know is that men, unlike animals, (32) .................. invented certain sounds to express thoughts and feelings, actions and things so that they could communicate with each other; and that later they agreed (33) .................. certain signs, called letters, which could be combined to represent those sounds, and which could be written down. These sounds, whetherspoken or written in letters, are called words.

Great writers are those who not only have great thoughts but also express these thoughts in words that (34) .................. powerfully to our minds and emotions. This charming and telling use of words is what we call literary style. Above all, the real poet is a master of words. He can convey his meaning in words which sing like music, and which by their position and association can (35) .................. men to tears. We should, therefore, learn to choose our words carefully, or they will make our speech silly and vulgar.

Điền vào ô 34

A. interest

B. appeal

C. attract

D. lure