In writing, you can show parenthesis in several different ways. You can, for example, use two brackets. You may also use two commas or two dashes.

Put appropriate punctuation marks in the following sentences.

1. A grandparents job is easier than a parents

2. It looks as if the sun goes around the earth but of course the earth really goes round the sun

In the following sentences, insert commas where necessary.

Hyphens are the short lines that we put between the words in expressions like ex-boyfriend and non-alignment.

Two-part adjectives
The hyphen is used in two-part adjectives when the second part ends in -ed or -ing.