Câu hỏi: Before becoming successful, Charles Kettering, former vice president of General Motors, was so poor that he has to use the hayloft of a barn as a laboratory.

A. as

B. so poor

C. has to

D. successful

Câu 1: It is of great ________ to show your interest and politeness when you are having a job interview.

A. important

B. importance

C. importantly

D. unimportant

Câu 2: _________, we couldn’t make out the gist of the passage.

A. Due to Romeo’s carefully explanations

B. Though carefully explained by Romeo

C. Carefully as Romeo explained

D. As Romeo carefully explained

Câu 3: If ________ access to education, children living in poverty will have a brighter future.

A. providing

B. are provided

C. having provided

D. provided

Câu 4: I was really impressed ………………….the beauty of Dubai.

A. on

B. in

C. to

D. by

Câu 5: It was hot, _________ I turned on the conditioner.

A. however

B. but

C. because

D. so

Câu 6: If I _______ just one year younger, I would be eligible for the scholarship.

A. am

B. will be

C. would be

D. were