单句语法填空/单句改错
1．(2016·全国Ⅰ，61)It was a great honour ________(invite) backstage at the not－for－profit Panda Base, where ticket money helps pay for research.
答案 to be invited [考查固定句型，it’s a great honour to do sth做某事很荣幸，根据句意：很荣幸被邀请到非盈利的熊猫基地的后台去。故用动词不定式的被动式。]
