Choose the correct answer to the following question

Choose the correct answer to the following question.
The Golden Gate Bridge is San Francisco’s most famous _________.

A. landmark

B. stall

C. market

D. local food

Choose the sentence that is closest in meaning to the following question.
You mustn’t throw the rubbish into the West Lake.

A. Not throw the rubbish into the West Lake.

B. Don’t throwing the rubbish into the West Lake.

C. Don’t throw the rubbish into the West Lake.

D. Throw the rubbish into the West Lake.

Choose the correct answer to the following question. 
He worked hard the whole day, _______ he went to bed early.

A. so

B. but

C. or

D. because

Choose the correct answer to the following question. 
Which ____________ is the documentary on?

A. characters

B. channel

C. viewers

D. game show