In the past 50 years, under the leadership of the CPC, the situation of Tibet has___________much better than it used to.

Shall we go hiking tomorrow —–______.Theradio says it will rain .

Only when you have obtained enough data______ come to a sound conclusion.

I feel greatly honored_____to make a speech in your school.[ ]

is no greater pleasure than running on the playground, ____ after a ball.