Câu hỏi: ...................... known as an industrial center, Hartford was the home of manufacturers of firearms,typewriters, bicycles, and even cars.

A. Although

B. Because

C. Once

D. Owing to

Câu 1: Many people .................. this city every year.

A. visits

B. visit

C. is visiting

D. was visiting

Câu 2: Era suggested that rising wages were one of the primary causes of inflation .................. thegovernment should take action to control wages.

A. so

B. for example

C. therefore

D. because

Câu 3: My English book ................. is a monument of boredom, is used mainly as a door stop.

A. which

B. that

C. which

D. that

Câu 4: Students studying in the UK can enjoy an excellent educational environment;..................., theirdegrees are worldwide accepted.

A. moreover

B. still 

C. otherwise

D. however

Câu 5: The articles that John has written .................. difficult to understand.

A. has been

B. was

C. are

D. is

Câu 6: ...................... important to have a good job.

A. Is it

B. It’s

C. It

D. Is