英语5道单项选择

英语5道单项选择
1.At the bedinning of class,the noise of deskscould be heard outside the classroom.
A.opened and closed
B.to be opened and closed
C.being opened and closed
D.to open and close
2. their hats into the air,the fans of the winning team let out loud shouts of victory.
A.To throw
B.Thrown
C.Throwing
Being thrown
3.It is one of the funniest things on the Internet sofar this year.
A.finding
B.being found
C.to find
D.found
4.The discovery of new evidence led to.
A.the thief having caught
B.catch the thief
C.the thief being caught
D.the thief to be caught
5. to sunlight for too much time will do harm to one's skin.
A.Exposed
B.Having exposed
C.Being exposed
D.After being exposed