We can infer from the passage that one benefit of fluoride to healthy teeth is                                .
A.It strengthens tooth enamel 
B.It stimulates saliva production
C.It makes teeth whiter        
D.It is a replacement for brushing and flossing in dental care

What a heavy fog we have! I’m sure our flight will surely fall behind ______
A.plan  
B.shipment
C.time 
D.schedule

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Prime Minister Malcolm Turnbull is trying to ________ himself with US President President Donald Trump and impress Australian voters.
A.gratify                     
B.commend                
C.ingratiate                 
D.please

Mrs.Thanh teaches English very well. She is a good ________________(TEACH)
A.
B.
C.
D.

________(55)
A.a
B.an
C.the
D.x

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
Just after the play started there was a power failure.
A.Hardly had the play started when there was a power failure.
B.No earlier had the play started than there was a power failure.
C.Hardly did the play start then there was a power failure.
D.No sooner did the play start before there was a power failure.

______(62)
A.do 
B.make
C.get
D.carry

IV. Fill in each numbered blank with one suitable word or phrase.
Water polo is a rapidly growing sport in the United States and internationally as (31) ______. For anyone involved in playing or being a spectator, it is important to understand the rules of the game.
Each team (32) ______ of one goalie and six field players. Each field player plays both offense and defense, and the goalie is not allowed on the other half of the pool. There are many different arrangements of players in front of the goal. The (33) ______ of the players depends on the play that is being run, similar to basketball or hockey.
One important rule is that the ball can only be handled by one hand at a time. If a player (34) ______ the ball, which is the size of a volley ball, yellow and with rubber grip, with both hands, the referee calls a turnover and the possession of the ball goes to the opposing team.
The playing time, (35) ______ on the rules of play and the level of competition. Usually, men play four 7-minute quarters while women play four 6-minute quarters. Teams are usually allowed 2 time outs per game, but this may vary. (36) ______ consist of swimsuits for both men and women, as well as a cap on the head with plastic ear protectors and the player's number on both sides. Visiting teams wear lighter color caps, while home wears the darker color. In (37) ______, one point is given for each time the ball is thrown into the goal, and in some leagues there is a 2-point line several meters out of the goal. Each quarter begins with a (38) ______ in which the fastest members of each team race toward the ball, which is placed at the halfway point on the water by the referee.
Water polo is an (39) ______, challenging, and fun sport. It is full contact and its competitiveness cannot be underestimatted. The game is great to watch and (40) ______ better to play. You may not imagine what goes on underwater that no one, especially not the referee, can see. Water polo is a growing sport for good reason, and it may soon be one of the leading sports for both men and women's athletics.
(31) 
A.well                                    
B.too                          
C.so                            
D.also

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.
While play hide and seek, the children came across some old photos in the attic.
A.discovered by accident  
B.took by mistake     
C.found on purpose 
D.looked for a reason

Choose the word which has the underlined part pronounced differently from the rest
A.strictly
B.literacy
C.policy
D.social