Câu hỏi:

Read the following passage, and answer the questions that follow

Ohio

In 1878, Thomas Edison began serious research into developing a practical incandescent lamp and on October 14, 1878, Edison filed his first patent application for "Improvement In Electric Lights". In 1879 he created a successful incandescent light bulb. This was his hardest project – from 1877 to 1880, Edison and his assistants tried around 3000 experiments to perfect their light bulb design. By the end of 1880, Edison had produced a bulb that lasted 1500 hours. This discovery marked the beginning of commercially manufactured light bulbs and in 1880, Thomas Edison’s company, Edison Electric Light Company began marketing its new product.

How many hours did the 1880 bulb last?

A. 3000

B. 1500

C. 1880

D. 1878

Câu 1:

His father is going to repair the bike for him soon.

________________________________________________________________

A.

Câu 2:

Choose the letter A, B, C or D the word that has the underlined part different from others.

A. precise

B. light

C. quality

D. science

Câu 3:

Choose the best answer A, B, C or D to complete the following sentences

The man said that he __________ from Bulgari.

A. come

B. came

C. is coming

D. had come

Câu 4:

Find and correct the mistakes

Find and correct the mistakes?

A. Can

B. tell me

C. have done

D. yesterday evening

Câu 5:

Bobby asked me __________ I liked collecting stamps.

A. as

B. though

C. whether

D. what

Câu 6:

Find and correct the mistakes

I am interesting in studying life on other planets.

A. interesting

B. studying

C. on

D. planets