Ⅰ 单句语法填空
1．(2016·南阳一中二模)It is only in the last few years____________free flying has gained any real public acceptance.
答案：that
2．(2014·陕西高考语法和词汇知识)No sooner ____________ Mo Yan stepped on the stage than the audience broke into thunderous applause.
答案：had
