_________, dolphins have no sense of smell. A. As known as far

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Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each the following questions.

_________, dolphins have no sense of smell.

As known as far

As far as is known

It is known as far

Known as far as it is

Giải thích

Đáp án B.

Cụm: As far as is known = As far as people know: như mọi người đã biết.

As far as I know/ I am concerned ...: theo như tôi được biết.

Have no sense of smell: không có khứu giác

Have (no) sense of humor: (không) có khướu hài hước