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: Some children ..................... too many toys.

A. has

B. has had

C. have

D. is having

Câu 2: I have studied English for 10 years, ................ I can’t communicate well with foreigners.

A. but

B. yet

C. however

D. nonetheless

Câu 3: This film is for adult only;............., children under 18 cannot be allowed to enter the cinema.

A. otherwise

B. for

C. therefore

D. however

Câu 4: 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 5: Exercising every day ...................... good for your health.

A. ere

B. he

C. were

D. is

Câu 6: When you are first learning to type, the task seems hopeless. ...................., you are often tempted to give up.

A. For example 

B. In fact

C. But

D. However