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

Câu hỏi

_____ problems in sailing in tropical seas is the coral reefs.

A. One of the biggest

B. The biggest one

C. Of the biggest one

D. There are the biggest

Đáp án
A. One of the biggest

Câu hỏi thuộc Bài tập:

E9- Vào 10- Đề ôn 27