Câu hỏi: 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 1: Florida ............... by thousands of tourists every winter.

A. visited

B. visits

C. was visited

D. is visited

Câu 2: The harder this man works, ....................... he becomes.

A. most successful

B. more successful

C. the more successful

D. the most successful

Câu 3: Thehamburger is eaten all over the world. The first hamburgers(1)........................ in Connecticut in 1895 by an Americanchefcalled LouisLassen. Louis (2)................... them hamburgers because he (3)..................... the recipe by sailors from Hamburg in Germany. Hamburgers (4)........................ afavourite in America in the early twentieth century. Their popularity(5)...................... even more after the Second WorldWar,            when they(6)................. in large quantities by teenagers who (7) ................... fast foodto family meals. In 1948, two brothers, Dick and Mac McDonald(8) ...................... a drive-in hamburger restaurant in San Bernardino, California.Since then, over 25,000 McDonald's restaurants (9).................. worldwide andnow 35 million McDonald's hamburgers (10)............................. every day in 115countries from India to the Artie Circle.

A. are sold

B. were sold

C. have been sold  

D. sold

Câu 4: 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 5: Computers are considered as .................... tools today.

A. the most modern

B. more modern

C. modern as

D. much modern than  

Câu 6: Choose the correct answer to fill in the blank. 

A. that are

B. being

C. are

D. are being