In the _____ of rain in the process of planting trees, you must stop.

Now an increasing number of middle school students go abroad for further study at their own ________, trying hard to realize their dreams.

 “Theory is something, but practice is ___” said he.

 If by any chance someone comes to see me, ask them to leave a________.

We have every reason to believe that our business has shown a(n) ____ to improve.