Choose one word that has the same meaning as the word in capitals.

1. DIFFICULT

A. easy B. hard C. energetic D. favorite

1) food / for young people / is good /who do/what kind of/a lot of sport

=> what kind of food is good for young people who do a lot of sport.

2) good and bad/staying slim/what are/ways of/?

=> what are good and bad ways of staying slim?

Biết chiết suất của thủy tinh là 1,5. Góc giới hạn phản xạ toàn phần khi ánh sáng truyền từ thủy tinh sang không khí.

A. 48,6°

B. 7275°

C. 62,7°

D. 41,8°

Câu A: cơ chế tự điều chỉnh

bài thứ nhất bạn viết thiếu rùi, ko đủ số liệu để tính

bài thứ hai : Niken: 22.5 kg

                   Kẽm: 30 kg

                   Đồng: 97.5 kg

If you are late tomorrow, I'll sack you
=> My boss warned...me not to be late the following day.............................................................................

1. Students/ said/ they/ not happy/ hear/ news
->Students said (that) they were not happy to hear the news
2. The teacher said/ students had/ follow/ school plan.
->The teacher said (that) students had to follow the school plan.
3. They/ had/ work/ hard/ during/ Christmas.
->They had to work hard during Christmas.
4. She/ said/ she not/ ready/ examination
->She said that she were not ready for the examination..
5. Other students/ said/ they/ happier/ if/ teacher/ delay/ exam
->The other students said they would be happier if the teacher delayed the exam..
6. The teacher said/ time/ not/ changed.
->The teacher said the time could not be changed
7. All students/ made/ sad/ news.
-> All students were made sad by the news

8. One of/ students/ told/ teacher/ it/ Christmas/ following week

-> One of the students told the teacher it would be Christmas the following week.