Questions where Midorigatari has received likes

How do you say this in English (UK)? Entreprise de travaux publics

How do you say this in French (France)? The point of studying maths is to ....

How do you say this in English (US)? いろんなこと

How do you say this in English (US)? 今日はこれで終わり

Which one is correct : in hopes of / in the hope of. What does it mean and how do you use it in a sentence?

1. During his trip, he sojourned (**) for a few days on the tropical island.
sow·jrnd
2. He cleverly parried (***) the criticism by turn... Does this sound natural?

My friend knew his son, who just turned eighteen, secretly bought a rifle in college. For opening the topic, he told his son he bought a ... Does this sound natural?

What is the difference between efficient and proficient ?

What is the difference between I will be home and I will be at home ?

'He is the same age as me.'
'He is as old as me.'

Do these sentences mean the same? Are both sentences correct?