We are worried ________ the current situation of environmental pollution in our country.
A.of           
B. about      
C.on       
D.at

“Don’t worry about your necklace. Give it to me and I promise to ______ great care of it.”
A.bring
B.take    
C.keep       
D.make

Tom said that he ________ his motorbike the day before.
A. had lost    
B. lost    
C. has lost     
D.lose

Members of my family share the ______.
A.housewife     
B.hometown
C. homework 
D.housework

can’t ______ this noise any longer. I’m going to write a letter of complaint about this problem.
A. get back to  
B.take away from    
C.put up with    
D.make out of

She made a list of what to do ______ forget anything.
A.in order to   
B. so as not to     
C.so that        
D. to not

According to the passage, the difficulty in diagnosing allergies to foods is due to ___________.
A.the vast number of different foods we eat
B.lack of a proper treatment plan
C. the similarity of symptoms of the allergy to other problems
D.the use of prepared formula to feed babies

The word "symptoms" is closest in meaning to ___________.
A. indications     
B. diet     
C.diagnosis 
D.prescriptions

_________(46)
A.speaks          
B. tells    
C.says              
D.gives

_________(45)
A.greatly      
B.mainly           
C.widely           
D.largely