The temperature of a star can be determined by its
A.Size
B.Color
C.Movement
D.Luminosity

There is a mistake in the sentence. Find the mistakes and correct it.
Hoang has felt much better when he took the pill.
A.has felt
B.better
C.when
D.took

Choose the word that has main stress placed differently from the others.

A.longevity        
B.calendar 
C.parade  
D.occasion

He has been studying for many years. He should have realized sooner that his grammar was incorrect.
A.He has been studying for many years to have soon realized that his grammar was incorrect.
B.He has been studying for many years that he should have realized sooner that his grammar was incorrect.
C.No sooner has he been studying for many years than he should have realized that his grammar was incorrect.
D.Though he has been studying for many years, he did not realize sooner that his grammar was incorrect.

The child ran out because of the strange noise.
A.The strange noise has made the child run out.
B.The strange noise made the child run out.
C.The strange noise made the child running out.
D.The strange noise made the child to run out.

Choose A, B, C, or D that best completes each unfinished sentence.
While I.................... in the park I saw Mr. John.
A.walked                               
B.walking                              
C.walk                      
D.was walking

If modern technology did not exist, we would never have such precious information.
A.valuable  
B.precise     
C.confidential          
D.detailed

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Arranging flowers ______ among my sister's hobbies.
A.were
B.have been
C.are 
D.is

Complete the second sentence so that it has a similar meaning to the first one. 
“I must go to Ha Noi tomorrow.” said Nam.
Nam said  _____________________________________ .
A.
B.
C.
D.

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
All nations should _______ hands to work out a plan to solve the problem of global warming.
A.shake                                  
B.join                         
C.lend
D.hold