Singular or plural.

I'd like to clarify that "news" is an uncountable noun, therefore, we'd need to say "a news item", "a piece of news" or "some news". Besides, it'd go with a verb in singular, that is, "That's all my news" is correct. Here are some words related to this plural-singular confusion, and a link to an exercise.

Singular or plural.

These words are plural, so they take a plural verb:

• My trousers are too long, (not 'is too long')

You can also use a pair of + these words:

• Those are nice jeans, or That's a nice pair of jeans, (not 'a nice jeans')

• I need some new glasses, or I need a new pair of glasses.

B/ Some nouns end in -ics but are not usually plural. For example: 

athletics/ gymnastics/ mathematics (or maths)/ physics/ electronics/ economics/ politics

• Gymnastics is my favourite sport.

News is not plural.

• What time is the news on television? (not 'are the news')

Some words ending in -s can be singular or plural. For example:means ==> a means of transport ==> many means of transportseries ==> a television series ==> two television series
species ==> a species of bird ==>  200 species of bird

C/ Some singular nouns are often used with a plural verb. For example:

government/ staff/ team/ family/ audience/ committee/ company/ firm

These nouns are all groups of people. We often think of them as a number of people (= 'they'), not as one thing (= 'it'). So we often use a plural verb:

• The government (= they) want to increase taxes.

• The staff at the school (= they) are not happy with their new working conditions.

In the same way, we often use a plural verb after the name of a sports team or a company:

• Scotland are playing France next week (in a football match).

• Shell have increased the price of petrol.

A singular verb (The government wants... / Shell has... etc.) is also possible.

We always use a plural verb with police:

• The police have arrested a friend of mine, (not 'The police has')

• Do you think the police are well-paid?

Note that a person in the police is 'a policeman / a policewoman / a police officer' (not 'a police').

D/ We do not often use the plural of person ('persons'). We normally use people (a plural word):

• He's a nice person,    but    They are nice people.

• Many people don't have enough to eat. (not 'doesn't have')

E/ We think of a sum of money, a period of time, a distance etc. as one thing. So we use a singular verb:

• Twenty thousand pounds (= it) was stolen in the robbery, (not 'were stolen')

• Three years (=it) is a long time to be without a job. (not 'Three years are...)

• Six miles is a long way to walk every day

http://www.better-english.com/grammar/sinplu.htm