There must be some .........; I think we have come to the wrong house.

The train crash was due to a ......... of the engine-driver, and many people died because of his carelessness.

You shouldn't worry about this; it was only a ......... of the tongue and no one really noticed.

I am telling you from personal experience — don't go there on holiday. It will be a(n) .........!

All the information was lost because of an ......... in the computers.

He paid a lot of money for the high quality machinery, but a lot of technical ......... started to appear in the long run.

It is the first time Jason has written a love letter, so no wonder he made a few ......... of the pen out of excitement.

Julia married a wealthy old man when she was only eighteen because all she wanted was to be rich. Years later she realized it was a big ..........

At the beginning of our marriage we had some ........., but little by little we smoothed them away.

What he did was inappropriate to his social status; as the president of the country, he didn't realize what a(n) ......... he had made.