Like other big cities in Asia , Hanoi began to (1)..................... the tram system in the early 1900s. A few years later , due to its cheap fares and convenience , this system rapidly became one of the most popular means of transport.There were five tram routes with HoanKIem Lake as a central station for residents to get (2)................... the city and to the suburan areas. However ,beacause of the population boom and the urgent demand for upgrading the more mordern road system , the rail tracks were (3)....................... removed and completely disappeared in 1990.

These days ,the fact that the population of the capita; has risen tremendously results in a dramatic increase in the number of vehicles on the roads . To meet the incresing travel demands and reduce traffic congestion , the first 13 - kilometre skytrain aystem , connecting Cat Linh va Ha Dong is (4).................. and it is expected to be completed by 2018 .Each four -compartment skytrain with the length of approximately 80 metres and the height of about 3.8 metres has a capacity of 1,362 passengers .Additionally , a new rail system includingover eight kilometres of skytrain rail and four kilometres of submay rail , (5)......................... links Hanoi Central Station to Nhon ,also has being built recently .The capacity of each skytrain in this efficent high-speed rail sustem is roughly 1,200 passengers.

1, A discover B improve C operate D install

2, A around B over C By D ahead

3, A occasionally B gradually C regularly D eventually

4, A pressed B launched C produced D announced

5 A which B what C whose D where

26. What can seem out of reach for young people?

A. Being able to find a part-time job.                         B. Being able to travel.

C. Being able to get time off from school.                 D. Being able to earn money.

27. Which students are in luck according to the passage?

A. The ones who want to go to Australia and New Zealand.

B. The ones who have part-time jobs.

C. The ones who have airline tickets.

D. The ones who are on holiday.

28. Where can people find working holidays advertised?

A. In magazines.         B. On the radio.          C. In travel guidebooks.         D. On the Internet.

29. According to the passage, which statement is true?

A. Some working holidays are not paid.

B. People on working holidays must be from Australia or New Zealand.

C. A young person needs a special visa to go on a working holiday.

D. Picking fruit is the only job available for young people on working holidays.

30. Why would a student NOT want to take a working holiday?

A. To earn money.                                                   B. To show how fearful he is.            

 C. To see the world.                                                D. To visit a new place.

Tổng chiều dài xe lửa vượt qua trong 18 giây là: 110+160=270m

Vận tốc xe lửa là: 270/18=15 (m/s)

Vận tốc của cả tàu và xe đạp là: 110:10 = 11m/s

Vận tốc của người đi xe đạp là: 15-11=4m/s

tick cho minh nha