The large family is really a heavy_______ on his shoulder, so he has to work day and night.

A dark cloud is a _______of rain.

If you haven’t got the service advertised on their website, then you have _____ to complain about it.

The foreign teacher Mr. Halt has a strange way of writing. Here’s a notice from him, but no clear ______ of what he has written can be made at all.

Language has always been —— as the phrase goes —— the mirror to society. English is no ______