làm giúp em đúng sẽ có ctl hay nhất và vote5 seo ạ

Fill in each blank with a suitable preposition or particle. 12. The company’s announced it is laying ...........................over 1,000 workers. 13. The whole village was wiped ....................in the bombing raids. 14. My plans for strarting a restaurant fell....................... 15. After a week on the run, he gave himself .......................to the police. 16. The students were slow to catch...................., but gradually they began to understand.

In the early 1900's, the world was developing at a very rapid pace, and with the growth of industrialization, cities became more crowded. Furthermore, with the invention automobiles, the traffic on the roads increased significantly, so there was a need for a better traffic system. In 1912, an American policeman, Lester Wire, who was concerned with the increasing traffic, came up with the idea of the first electric traffic light. Based on Wire's design, the lights were first installed in Cleveland, Ohio, on August 5, 1914, at the corner of 105th and Euclid Avenue The first electric traffic light had only red and green lights; it did not have a yellow light like modern- day traffic signals. Instead of a yellow light, it had a buzzer sound that was used to indicate that the signal would be changing soon. In the year 1920, a policeman named William Potts in Detroit, Michigan invented the first four-way and three-coloured traffic lights. Apart from red and green, a third colour - amber (or yellow) - was introduced. Detroit became the first city to implement the four-way and three-colored traffic lights. In the 1920's, several automated traffic signals were installed in major cities around the world. The modern traffic light still uses this famous T-shaped model with three different colors. . Answer the questions 1.When was the first electric traffic light invented? _______________________________________________ 2Who invented the first electric traffic light? _______________________________________________ 3.How many colours did the first electric traffic light have? _______________________________________________ 4.Where were the lights first installed? _______________________________________________ 5.What was used instead of yellow light to warn everyone of a signal change? ______________________________________6.When was the yellow light added? ________________________________________________

Địa hình đã vôi tập trung nhiều ở miền nào ?

mng ơi giúp mình mình cần gấp ạ câu c thôi ạ Cảm ơn mng

34 + 87 98 + 90 56 + 45 ngoài lề : + làm thế nào để đổi tên nhóm vậy + có bn nào vào nhóm mk ko

Fill in each blank with a suitable preposition or particle. 7. Santa Claus is based ...........................the description of Saint Nicholas. 8. The couple broke .............their engagement after they had a huge argument. 9. At school, Luis got into a lot of trouble for something I did, and now he holds it......................me. 10. Do you have to go already? Can’t you stick ..........................for a few minutes. 11. John can while ........................a whole day playing online computer games with his mates.

cần gấp ạ mong mn giúp đỡ hứa vote 5 sao vs ctlhn ( 1 trong 2 ) :<<<

1 hình chữ nhật có diện tích xung quanh là 420 cm vuông và chiều cao là 7m. a: tìm chiều dài và chiều rộng của hình hộp chữ nhật biết chiều rộng bằng 2/3 chiều dài. b: tính diện tích toàn phần của hình hộp chữ nhật

Fill in each blank with a suitable preposition or particle. 1. She’s totally wild ......................him. 2 .I tried to phone her but I coudn’t get.... 3. Soviet citizens were prohibited............................travelling abroad. 4. The police are very unwilling to interfere......................family problems. 5. We should cover the burned area .................a thick sterile dressing. 6. They fell ...................love ......................each other almost immediately and were married in a few weeks.