All people, ______ they are old or young, rich or poor, have been trying their best to help those in need since the disaster.
We shouldn’t spend our money testing so many people, most of ____ are healthy.
I won’t see the film tonight. I am busy. ______, it is raining cats and dogs.
Computersin offices and homes since 1970s.
More attention must be paid ____ the endangered animals.
She doesn’t like the way _______ you speak to her.