Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Telecom giant Viettel decided to implement the 5G network _____ his technology was still uncommon.
A.because                   
B.in spite of   
C.although                 
D.because of

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs front the other three in the position of primary stress in each of the following questions.

A.routine    
B.sorrow 
C.software 
D.printer

We tried to emphasize a system where you put things in place and hire smart, industrious people.
 
A.slothful     
B.hardworking
C.busy     
D.fruitful

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction in each of the following questions.
It is essential that cancer is diagnosed  and treated as early as  possible in order to assure a successful cure.    
A.is
B.diagnosed
C.as early as  
D.assure

I _____English here since I graduated from university.
A.taught
B.have taught
C.am teaching
D.teach

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
He looks for any excuse he can to blow off his _________ to do housework. 
A.commitment
B.obligation
C.assignment
D.responsibility

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
Because she was a few minutes late, she walked quietly into class and sat in the back of the room.
A.rambled                 
B.tiptoed                  
C.stumbled      
D.crawled

Many scientists _______ all their lives to working out answers to problems.
A.send
B.promote
C.spend
D.devote

III. Choose the word or phrase that best fits the blank space in each sentence or substitutes for the underlined word or phrase.
He was very ashamed ______ his friend's bad manner.
A.at                                        
B.of
C.on                           
D.through

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
As a sociable boy, Jack enjoys spending his free time going out with friends.
A.caring
B.shy
C.mischievous
D.outgoing