Choose the best answer for the following sentence:
He was the first _____________ the fire.
A. discover                 
B. to discover                
C. discovering                 
D. discovered

Choose the best answer for the following sentence:
People said that the pharaoh Khufu was ______________ inside the pyramid. 
A. died                   
B. buried                 
C. served                
D. stolen

Choose the best answer for the following sentence:
There are two public libraries in the city, but _____________ of them is located close to the place where I live.
A. none
B. no
C. neither
D. nor

Choose the word that has the underlined part pronounced differently from the rest: 
represent                 receive               respect              repeat
A. represent                
B.  receive               
C. respect              
D. repeat

Choose one sentence that has the same meaning as the root one:
I’m afraid I won’t be able to do the work in time.
A. I don’t think I can have done the work in time.
B. I think I mustn’t have done the work in time.
C. I don’t think I can do the work in time.
D. I don’t think I must have done the work in time.

Choose one sentence that has the same meaning to the root one:
His eel soup is better than any other soups I have ever eaten.
A. Of all the soups I have ever eaten, his eel soup is the best.
B. I have ever eaten many soups that are better than his eel soup.
C. His eel soup is the worst of all soups I have eaten.
D. His eel soup is good but, I have ever eaten many others better.

Choose one sentence that has the same meaning as the root one:
The teenager should have phoned his parents earlier. 
A. He had to phone them earlier. 
B. He phoned them earlier. 
C. He didn’t phone them earlier.
D.  He phoned them at last.

A. -16.
B. -14.
C. -18.
D. -12.

Giá trị của giới hạn $\lim \frac{n\sqrt{n}+1}{{{n}^{2}}+2}$ bằng
A. $\displaystyle \frac{3}{2}.$ 
B. 2. 
C. 1. 
D. 0.

Tổng của cấp số nhân vô hạn sau: 5, 5, 1, 15,...  Kết quả đúng là
A. S=551-5.
B. S=555-1.
C. S=1-555.
D. S=555+1.