It was a nice day, so we decided _______ for a walk.

The telephone is considered to be one of the most useful ________achievements.

John often goes to bed early and ________up late.

A ________is a place where plants and trees are grown for scientific study.

You ________English fluently if you don’t practice it every day.

I ________swimming with my classmates last weekend.

The New Year is coming so most of the clothing stores are ________with people.

She often ________stamps of many other country in her spare time. She has a large ________of stamps.

At last, Mary could not master her piano lessons, ________made her parents disappointed.

You will get a good seat if you ________first.