1.b
ADJECTIVE
1, relating to, or characteristic of a town or city.
e.g. ‘the urban population’
2.a
NOUN
A state of stunned confusion or bewilderment.
e.g. ‘he was walking around in a daze’
3.c
NOUN
A test of the performance, qualities, or suitability of someone or something.
‘clinical trials must establish whether the new hip replacements are working’
4.a
relieved
ADJECTIVE
No longer feeling distressed or anxious; reassured.
‘relieved parents who had waited anxiously for news’
5.c
proposal
NOUN
A plan or suggestion, especially a formal or written one, put forward for consideration by others.
‘a set of proposals for a major new high-speed rail link’
Source: en.oxforddictionaries.com/