Choose the best answer to complete the sentences

II.Choose the best answer to complete the sentences:
5.I like to_________friends over to play board game at weekends
A.make                   B.invite                   C.ask                   D.help
6.Lunar New Year,or Tet,is the longest_________in Viet Nam.
A.activity                   B.holiday                   C.ceremony                   D.anniversary