Question

[Lê Quỳnh Anh]

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.

A. As known as far

B. As far as is known 

C. It is known as far

D. Known as far as it is

Answer 1

[Dương Hoàn Anh]

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