the discovery was a major

Câu hỏi:

31/03/2020 22,389

Bạn đang xem: the discovery was a major

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

The discovery was a major _______ for research workers.

C. breakthrough

Đáp án chủ yếu xác

Đáp án: C Breakthrough= bước tiến thủ cần thiết, breakout= vượt lên trước ngục, breakdown= thất bại, break-in= đột nhập.

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CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

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

She has just bought ____.

A. an old interesting painting French

B. a French interesting old paint

C. a French old interesting painting

D. an interesting old French painting

Câu 2:

Mark the letter A, B, C or D on your answer sheet to tát show the underlined part that needs correction .

Each (A) of the nurses (B) report to the operating room when his or (C) her name is (D) called.

A. of the

B. report 

C. her name

D. called

Câu 3:

Mark the letter A, B, C or D on your answer sheet to tát show the underlined part that needs correction .

My father used to tát (A) give má a (B) good advice (C) whenever I had a (D) problem.

A. give 

B. good advice

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C. whenever 

D. problem

Câu 4:

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

Who was the last one ______the classroom yesterday?

A. to tát leave

B. left

C. leaving

D. had left

Câu 5:

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

By 1820, there were over sixty steamboats on the Mississippi river, _______ were quite luxurious.

A. which of many

B. many of them 

C. many of which 

D. many of that

Câu 6:

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

The bad weather caused serious damage to tát the crop. If only it _______ warmer.

A. was

B. were

C. has been

D. had been

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