My mum seldom( adverb of frequency) uses the computer.
On Sunday( adverb of time) he came back from Paris.
This mobile is very ( adverb of degree) expensive.
James talks slowly( adverb of manner).
They are staying at their friend’s house tonight ( adverb of time).
Past simple
Present Perfect
Present Perfect
Past simple
Present Perfect
Present Perfect
Past Simple
2 social
4 politicians
5 professions
6employers
7 employees
8 qualifications
9 achievements
10 failure
B) at four o'clock
когда время какое-то обозначается, в которое начали делать действие, то всегда 'at'