In English there are nouns which are used only in the singular.
|furniture||She bought new furniture last week.|
|fruit||Would you like some fruit?|
|hair*||Your hair looks lovely.|
more nouns: luggage, jewellry
|news||Good evening. Here is the news.|
|physics||Physics is our first lesson on Monday morning.|
|progress||Progress was made in developing new technologies.|
|The United States||The United States is a country with 50 federal states.|
more nouns: athletics, billards, crossroads, darts, economics, gymnastics, maths, mumps, politics, series
|homework||My Maths homework was not easy.|
For further information on the hotel, phone us at ....
|knowledge||His knowledge of English is excellent.
more nouns: advice, damage, work