Which of the following sentences illustrates correct verb and verb tense usage?

Those who are not wise .... .

Which illustrates correct usage of articles and conjunctions?

While .... of our relatives live on the .... hill in the county, ..... of our friends live in the .... .... areas of the valley.

The archaeologists were .... to discover such a ... and ..... ..... artefact at that mostly uncovered site.

Although Marvin said he had hidden the keys .... the flower pot, we were unable to find them .... the dark. In the end, we waited for him at the coffee shop .... the corner.

'The family went __ France last summer'

'The bird is __ the branch.'

The project at work is going ____, and that makes me feel ____.

It's preferable not to compare one employee's performance ____ another's.

They ____ want to eat ______ vegetables.