It was a service________I will be eternally grateful.
A.for which
B. to which     
C.to whom   
D.for whom

Choose the best answer to complete the sentences. 
_____ the desalination plant, the company could offer an effective solution to the problem of water scarcity.
A.To build       
B.Having built     
C.Being built     
D.Having been built

You/ should/ doctor/ see/ that cut.
A.A. You should have a doctor seen to that cut. 
B.You should get a doctor seen to that cut.
C.You should have a doctor see to that cut.    
D.You should ask a doctor see to that cut.

_________ (6)
A.centuries
B.times  
C. ages     
D.years

Choose the best answer to the following questions.
Have you ever seen the photographs ...................... Ann took?
A.Ø  
B.where                      
C.when                      
D.who

Choose the best answer to the following questions.
London is the city ________I have visited several times.
A.in which     
B.where                      
C.in that
D.which

Although the staff did expand somewhat, for the first century of its existence, the entire teaching staff consisted of the president and three or four tutors.
 
A.back and forth 
B.to and fro   
C.more or less  
D.side by side

Choose the best answer to the following questions.
Mr.Jones, ______I was working, was  generous about overtime payments.
A.he                           
B. for whom       
C.for him      
D.whom

scientists/ proved/ there/ close link/ smoking/ lung diseases/ such as/ cough/ tuberculosis/ and/ worst/ all/ fatal cancer.  
A.Scientists have proved that there is a close link between smoking and lung diseases, such as cough and tuberculosis and the worst of all is fatal cancer.   
B. Scientists have proved that there has been a close link of smoking with lung diseases, such as cough and tuberculosis and the worst of all, fatal cancer.
C.Scientists proved that there has been a close link from smoking to lung diseases, such as from cough to tuberculosis and worst of all, fatal cancer.     
D.Scientists have been proving that there is a close link between smoking and lung diseases, such as cough and tuberculosis and worst of all is fatal cancer.

He/ like/ nothing/ better/ sit/ read/ science books/ father’s/ library.
A.He liked nothing better than to sit to read science books in his father’s library.
B. He liked nothing better than to sit and read science books in his father’s library.
C.He liked nothing better than to sit and read science books in father’s library.
D.He liked nothing better than sitting and read science books in his father’s library.