It will make ______big difference if this experiment becomes ______ success.

Don’t stand out in ____ cold or you’ll catch ____ cold.

Today the canal is still being used. Ships can be seen moving on ______ water now and then. But it is no longer ______ busy water highway.

---How about ________ Christmas evening party?
---I should say it was ________ success.

In order to find ______better job, he decided to study _________ second foreign language.

When he left _____school, he got a job as _____secretary in a food company.

Keeping a diary is ____ good habit, by which you'll make ____ great progress in writing.

Though our city has a good public transport system, _______ private car is becoming _________ popular means of transport.

—Has the little girl passed ______ P.E. test?
—She has tried twice, and the teacher will allow her to have _____ third try.

In ____ accident _____ knowledge of first aid can make _____ real difference.