What is the rule for adding -s to a number (such as dozen, hundred, thousand, million, etc) when describing quantities?

A true gentleman, James was always ... about his great wealth.

'He wasn't sure whether or not she would arrive on time.' Which part of this sentence is incorrect?

'I decided to never see her again' is an example of:

There was blood everywhere: it was a _____ scene.

Where should a full stop be inserted in: 'If only Ms Smith had arrived sooner,' Dr Jones said

It is easy to carry solid objects, but the same cannot be said of liquids. REWRITTEN SENTENCES:

After realising that our hosts hadn't actually invited ... to .... party, .... excused ... from the table and slipped out the back door.

'I can meet you at noon', said Peter.

Did you hear the weather forecast for tomorrow?

last what ! it's did you night , over After