I find that looking after children is a fun and challenging job ___________ you need to be patient and careful.
We _______ on this project for four hours. Let’s have a rest.
What the doctor really doubt is_____my mother will revover from the serious disease soon.
Her name was on the _______of my tongue, but I couldn’t tell it.
________her home, Mary helps her mother with some housework.
They often _______their friends at weekends and they always have a good time.