Only by seizing every possible_____ topractice can you possibly hope to improve your spoken English.

In the last decade, disasters havebecome increasingly common. It’s high time that we ______these issues moreseriously.

The news came as no surprise to me I ____ for sometime that the factory was going to shut down

________ will you come back from the library,Linda– In an hour.

____waiter came up to us andsaid,"You are welcome"