Diện tích của hình tròn là $\displaystyle 64\pi \text{ }\left( {c{{m}^{2}}} \right)$ thì chu vi của đường tròn đó là:
A. $\displaystyle 64\pi \text{ }\left( {cm} \right)$
B. $\displaystyle 8\pi \text{ }\left( {cm} \right)$
C. $\displaystyle 32\pi \text{ }\left( {cm} \right)$ 
D. $\displaystyle 16\pi \text{ }\left( {cm} \right)$

Choose the correct sentence which is built from the words and phrases given:
I / happy / receive / letter of invitation / this morning
A. I was happy when receive your letter of invitation this morning.
B. I was so happy to receive your letter of invitation this morning.
C. I was happy to receive your letter of invitation this morning.
D. I was happy so that I receive your letter of invitation this morning.

Choose the word that has the underlined part pronounced differently from the rest:
visual                     music                    used                     names
A. visual                     
B. music                    
C. used                     
D. names

Choose a word that has different stress pattern:
ocean                 divide                  modern              water
A. ocean                 
B. divide                  
C. modern              
D. water

Choose the best answer for the following sentence:
The highest building is on Quang Trung Street ___________ the center of my city.
A. on
B. of
C. in
D. at

Choose the best answer for the following sentence:
It was not until I began to learn how to play the guitar ______________________. 
A. that I had realized the interest of classical music  
B. that I realized the interest of classical music
C. so that I realized the interest of classical music
D. in order that I realized the interest of classical music

Choose the best answer for the following sentence:
We ___________ dinner at home on Saturdays.
A. haven’t had 
B. didn’t had
C. aren’t have 
D. don’t have

Choose the best answer for the following sentence:
There’s a serious accidents on my way here. Many people were injured but only some __________ to hospital.
A. were taken
B. were taking 
C. have been taken
D. have been taking

Find a mistake in the four underlined parts of the sentence and correct it:
If I don't like you, I wouldn't invite you to my house.
A. don't like
B. invite
C. to
D. house

Choose the best answer for the following sentence:
How long did ___________ Nguyen Dynasty last? 
A. a                  
B. an                         
C. the      
D. Ø