钝角三角形的内角和大于锐角三角形的内角和．

     Tomorrow we are going to have a farewell party. Everyone will perform at the party. We are allexcited.  I can play the piano. Mike cando Chinese kung fu. Amy can sing songs. Sarah can play the erhu and Miss White can dance. We will invite our parents to ourparty. That will be very interesting. Would you like to join us? Come on！

朋友难过时，我要去____。