Câu hỏi: Commercial centers are ................ they were many years ago.

A. as popular than

B. the most popular

C. the most popular than

D. more popular than

Câu 1: Hotels have developed ................... restaurants in this area.

A. as rapid as

B. as rapid than

C. so rapidly that

D. as rapidly as

Câu 2: Computers are considered as .................... tools today.

A. the most modern

B. more modern

C. modern as

D. much modern than  

Câu 3: Samuel Clemens, ................ under the pen name Mark Twain, createdcharacters that reflected purely American life.

A. he wrote

B. was writing

C. wrote

D. who wrote

Câu 4: 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 5: Choose the correct answer A, B, C or D.

A. less convenient as

B. less convenient than

C. not so convenient than

D. the most convenient as

Câu 6: Books .............. of leather are longer lasting than books that are made of paper.

A. made

B. are made

C. making 

D. which made