Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions from 21 to 25. There are 4400 living species of amphibians. Frogs, toads, newts and salamanders are all amphibians. Many live mainly on land, but most spend at least some of their lives in water. The largest amphibian, the Chinese giant salamander, is 1.8m long. Frogs and salamanders are able to breathe through their damp skins to a certain extent, both in the water and on the land, but toads rely largely on their lungs and cannot remain underwater for long. Toads and frogs are similar in many ways, although toads usually have rougher, drier skins and may waddle rather than hop as frogs do. Some toads produce spawn in strings like necklaces, rather than the mass of eggs laid by frogs. Most amphibians lay their eggs in water. Frogs’ eggs are called spawn. The eggs are protected from predators by a thick layer of jelly. A tadpole develops inside each egg. When it hatches, it is able to swim using its long tail, and it breathes through gills. As a tadpole grows, first hind legs then forelegs begin to form. Lungs develop, and the young frog is able to begin to breathe with its head above water. Gradually, the tail shortens until the young frog resembles its adult parents. 21 .The text describes amphibians as animals that ________. A. do not have lungs B. can live on land and in water C. use their gills to eat and breathe D. cannot swim very well 22. According to the text, the world’s largest amphibian is a ________. A. frog B. toad C. newt D. salamander 23. One of the differences between frogs and toads is that ________. A. frogs have drier skins B. frogs develop tails as adults C. frogs can stay underwater longer D. frogs lay eggs in strings 24. Young frogs start to breathe with their heads above water when they ________. A. develop lungs B. develop internal gills C. hatch out of their eggs D. start eating insects 25. The underlined word "predators" in the passage probably means ________. A. animals that eat other animals B. animals that feed on grass C. amphibians living in water D. amphibians living on land

a. 5+76/x^2-16=2x-1/x+4-3x -1/4-x b. 3/x+2-2/x-2+8/x^2-4=0

vẽ đậu mầm lô mọi người lại chơi một ván bài nhé : Nếu tôi thắng mọi người phải chở tôi đi Dubai và vào nhóm tôi Nếu mấy bạn thắng tôi sẽ cho mấy bạn 1 bất ngờ

một người chạy bộ từ 7 giờ đến 8 giờ 30 phút và chạy với vận tốc 10km/h . hỏi quang đường chạy dài bao nhiêu km ?

7. The larger the city, …………… the crime rate. A. highest B. higher C. the highest D. the higher 8. You must explain your problems ………….... A. as clear as you can B. as clearly as you can C. as clear than you are D. as clearly as you are 9. Pil is ……………… person we know. A. the happier B. the happiest C. happier D. happiest 10. Which woman are you going to vote for? –I’m not sure. Everyone says that Joan is…………. A. smarter B. the smarter C. more smarter D.more smart 11. Bill is ……………… A. lazier and lazier B. more and more lazy C. lazier and more lazy D. more lazy and lazier 12. It’s too noisy here. Can we go somewhere …………………? A. noisier B. more quiet C. more noisy D. quieter

400 ở đâu đấy ạ ................

Làm hộ mik câu 4 phần 2 bài hình với ( đừng làm tắt nha vs k cần vẽ hình đâu)

giải giúp mik nhanh cái bài này đc ko ạ

Vẽ mầm NL: Thách các bn sau 3p ms nhấn vô trl đó ai chx đc 3p mà nhắn là mk bc nha

1. Of the four dresses, which is ………………..expensive? A. the best B. the most C. the more D. the greater 2. The larger the apartment, the................... the rent. A. expensive B. more expensive C. expensively D. most expensive 3. The faster we walk,………….. we will get there. A. the soonest B. the soon C. the more soon D. the sooner 4. “ Why did you buy these oranges? ” “They were ……….….. I could find. ” A. cheapest B. cheapest ones C. the cheapest ones D. the most cheapest 5. She plays the piano …………… as she sings. A. as beautifully B. more beautifully C. as beautiful D. the most beautifully 6. The streets are getting more and …………… these days. A. crowded B. less crowded C. more crowded D. most crowded