Level A1
Demonstrative Pronouns
These books are new.
These books are new. The books are near me and there is more than one, so these.
Forms
This book is near me.— one thing near me, so thisThese books are near me.— more than one thing near me, so theseThat book is far away.— one thing far away, so thatThose books are far away.— more than one thing far away, so those
A common mistake
Wrong: This errors are common.
Right: These errors are common.
A common mistake is This errors are common. Errors is more than one thing, so we say These errors are common.
More examples
That shop is closed today.
One thing far away: That shop is closed today.
Those shoes are mine.
More than one far away: Those shoes are mine.