As he grows older, he becomes increasingly intelligent.  

A. established                        

B. begun  

C. seen     

D. proved

A.   What nonsense!                     

B.   That's right!                           

C.   Absolutely!                                      

D.   I quite agree.

A. more young                       

B. youngest                             

C. younger

D. young

A. forth                               

B. off                                 

C. down                          

D. up

A. You can say that again                            

B. Yes, he’s quite gentle.

C. Really? I’ve never seen him lie.               

D. Right. He‘s so quiet.

A. battle                               

B. war

C. struggle                           

D. fight

A. mean         

B. head                                                                              

D. beat