Câu hỏi: The electric light bulb ........................ by Thomas Edison.

A. invented

B. was invented

C. invents

D. is invented

Câu 1: The journey, ........................ alone for most of the way, was in the name of charity.

A. I undertook

B. that I undertook

C. which I undertook

D. undertaking

Câu 2: Willa Cather, ....................... a prominent American writer, grew up in Nebraska during the early farming years. 

A. who became

B. became

C. she became

D. it is she who became

Câu 3: Computers are considered as .................... tools today.

A. the most modern

B. more modern

C. modern as

D. much modern than  

Câu 4: I ..................... you a copy of the article tomorrow.

A. send

B. was sending

C. will send

D. will be sent

Câu 5: I .................... your keys on the table by the bed last night.

A. saw

B. are seen

C. was seen

D. see

Câu 6: Hotels have developed ................... restaurants in this area.

A. as rapid as

B. as rapid than

C. so rapidly that

D. as rapidly as