Câu hỏi: 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 1: I .................... your keys on the table by the bed last night.

A. saw

B. are seen

C. was seen

D. see

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

A. the most modern

B. more modern

C. modern as

D. much modern than  

Câu 3: Hotels have developed ................... restaurants in this area.

A. as rapid as

B. as rapid than

C. so rapidly that

D. as rapidly as

Câu 4: In 1849, Walter Hunt, ...................... American inventor, patented a designthat served as the basis for modem safety pins.

A. an

B. he was an

C. who

D. was an

Câu 5: Choose the correct answer to fill in the blank. 

A. that are

B. being

C. are

D. are being

Câu 6: John always .................... his car in the lot by the school.

A. park

B. parks

C. is parked

D. was parked