olicies, _______ to insure thatcompulsory education is truly free, ________ by the local government acrossChina since the start of school on September 1

If better use is ________ your sparetime，you’ll makegood progress in doing your business.

I wonder why Ann didn’t get _______ the job.She is the right person for it.

It was in the wooden house______ a businessman built by collecting funds______ the great scientist carried out the experiment that made a difference

Let’s put off the picnic until next week, _____ the weather may be better.