Mozart started writing music ______________ he was four years old.
A until    B after    C before    D when

          all of us enjoy eating hamburgers, we can’t eat too much of junk food.
A. As                B. Because            C. Although

The little girl felt upset ____ her pet dog died.
A. why    B. because of    C. because

My uncle doesn’t have much money. ______he always enjoys himself.

Hurry up, ________ you will be late for school.

It’s too late to go out now and        , it’s starting to rain.

       our manager objects to Tom’s joining the club, we shall accept him as a member

Last Saturday, we were walking along the street _____ a car suddenly knocked an old man over.
A when       B while       C as      D since

All of us went to the park --------Kim today. He was ill in bed .

They will not start the work _______ their teacher comes back.