She has just bought . (Miễn phí)

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.

A. break-in

B. breakout

C. breakthrough

D. breakdown

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

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 bầm a (B) good advice (C) whenever I had a (D) problem.

A. give 

B. good advice

C. whenever 

D. problem

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

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

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