It’sveryinteresting(feed)thepets.

(   )1.Our teacher often keeps us ________ classroom every day,so we must keep our classroom       .
   A.clean,clean   B.cleaning,cleaning    C.cleaning,clean    
(   )2.What bad weather it was! We decided _______
　　A: to go out   B. not to go out    C. to not go out
(   )3.I felt _____________when I heard the __________ news.
   A.exciting;excited B.excited;exciting C.exciting;exciting
(   )4. Mrs Brown is nice.    
Every day she tried to cook __for me during my stay in Canada.      
　A. something different  B. different something  C. nothing different    
(  )5.The problems _______difficult _______ few students can solve them.
　　A. so; and      B. so; that       C. so; to