Experts believe that a world shortage of oil is certain to happen_____ we continue to be so wasteful.
A.if
B.when
C.for
D.unless

Mark the letter A, B, C or D in your answer sheet to indicate the underlined part that needs correction in each of the following questions.
They worked as receptionists in this hotel since they graduated from university in 2009.
A.worked                              
B.as receptionists              
C.graduated                  
D.in 2009

Choose the correct answer
The Johneses have invited us................. to Australia with them this summer.
A.going                    
B.for going                 
C.about going                        
D.to go

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
The management encourages all staff to place any complaints or suggestions in the box_______in the lunch room.
A.provided
B.provision
C.provider
D.providing

Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions.
Each student (A) have to write a (B) paragraph about the (C) benefits of (D) learning English.
A.have
B.paragraph
C.benefits
D.learning

She claimed ________ a ghost while saying at the old castle.
A.to see
B.to be seen
C.seeing
D.to have seen

Mark the letter A, B, C or D on your answer sheet to indicate the answer to the following question.

______ back to her hometown, Julia found everything new and attractive.
A.When arrived 
B.As she arrives  
C.On arrival  
D.On arriving

__________(62)
A.impact 
B.interest   
C. infection  
D.absorption

(27) 
A.However                
B.As a result    
C.For example      
D.Therefore

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

A.snow             
B.know          
C.town           
D.slow