Предлоги времени for, since, while, during

I've been studying English -------------- three years.

She has lived in New York ---------------2010.

We met many interesting people --------------our trip to Europe.

He has been feeling much better ----------------- he started exercising.

I worked at that company --------------- five years before moving on.

---------------the meeting, several important topics were discussed.

She has been a vegetarian -------------- she was a teenager.

They waited for the bus -------------- over an hour.

The museum was closed ---------------- the winter months for renovations.

I've known her ------------------- we were in elementary school.