I studied for one hour.

He devoted much time to study.

He devoted a lot of time to study.

Tom studied French for three hours last night.

I know. I hardly have any time to study.

He studied for one and a half hours every day.

He worked for five hours on end.

I study for many hours at night.

He has been studying for two hours.

It's a waste of time to study when you're sleepy.

Studying when you're sleepy is a waste of time.

Work while you work, play while you play.

My hours of study are from 8 to 11 p.m.

We spent a lot of time on our lessons.

I studied for more than two hours, and afterward I went to bed.

After supper, he studies his lessons for three hours.

He studied ten hours a day on average.

He studies ten hours a day on average.

I study for 3 hours every day.

I have been studying for two hours.

I studied for perhaps two hours.

when someone tells you it's impossible.

What was the point of all that hard work?

Do you remember when we were kids at school, about that big, they played the same trick on us?

How many hours have you been studying?

Have you been studying for two hours?

I studied English for two hours after dinner.

We study according to the schedule.

Study will do you good.

I began to learn Esperanto.

Have you ever heard of the J. Edward Newton Fund, Gary?

He put a lot of time and effort into preparing for the exam.

I watched television during a break in my studies.

I study about two hours every day.

Silencer crammed 18 hours a day

I study sometimes!

It took me a year to learn to walk again after my diving accident in Palau.

Mary always studies for two hours a day.

I study English an hour every day.

He is a diligent student. He studies three hours every day.

I spend at least three hours a week studying French.

I came here to study.

What are his interests now?

It's a student's business to study.

I'd like to study French, but I don't have the time.