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

A. saw

B. are seen

C. was seen

D. see

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

A. visited

B. visits

C. was visited

D. is visited

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: Henry Ford, ..................... ,was an outstanding innovator.

A. he founded the Ford Motor Company

B. founded the Ford Motor Company

C. who founded Ford Motor Company

D. the Ford Motor Company founded

Câu 4: Books .............. of leather are longer lasting than books that are made of paper.

A. made

B. are made

C. making 

D. which made

Câu 5: 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 6: 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