The volunteers made a big ________our life.
A. different from B. difference to C. difference between
This dress is similar______ that one in color.
A. with B. as C. to
His money_________ last month.
A. run out of B. ran out C. ran out of
Yesterday I_____ and I put my head back right away.
A. had a nosebleed B. got hit on the head C. cut my 
knee
I had thought he wouldn’t like to help me with my math problem. However，____‚he agreed______ me when I asked him for help.
A. to my surprised, to help
B. to my surprise, helping
C. to my surprise, to help
Don’t 
sit____ the same way before the computer for too long without________.
A. in, moving B. on, moving C. in, move
