Life is like _________ ocean; only ________ strong-willed can reach the other shore.

People who tend to focus on ______ while speaking a foreign language may find that they worry too much about making mistakes.

Today acupuncture has become popular round the world, ________ have other traditional Chinese medicines.

It was not until all the fish in the pond died that________ the situation was serious.

The girl dressed in the latest Paris fashion is ________ in her appearance but rude in her speech.