The earth is being threatened and the future looks bad.

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