Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
If an alarm _____, the thieves wouldn’t have broken into his house. 
A.installed
B.had installed
C.have installed
D.had been installed

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The computer has had an enormous _____ on the way we work.
A.impression
B.change
C.influence
D.success

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The brain is made up of billions of neurons that differ                            __each other greatly               size and shape.
A.with – with
B.from – by
C.from – in
D.with - from

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
“Did the minister approve the building plans?” “Not really. He turned them down _______ that the costs were too high.”
A.in case
B.supposing
C.provided
D.on the grounds

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
His brother refuses to listen to anyone else's point of view. He is very _________.
A.open-minded
B.narrow-minded
C.bad-tempered
D.kind-hearted

There was nothing special about this clothes _________ from  his flowery tie.
A.except   
B.but   
C.other
D.apart

He is open his mouth _________ .
A.so very wide  
B.being very wide 
C.to be very wide      
D.very wide

 _____________.in the atmosphere is the temperature falling below freezing.
A.Frost is produced     
B. What produces frost
C.Frost produces  
D.What is frost produced

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
Stephen                   me he'd bought that suit in a sale.
A.said                         
B.spoke                      
C.told                         
D.claimed

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
US scientists claim that they                   a new vaccine against malaria.
A.were developed      
B.have developed  
C.had developed 
D.was developing