With ____ leaves ____ in the earth every year, the soil becomes richer and richer.
A. falling; burying B. fallen; buried
C. fallen; burying D. falling; buried
American women usually consider their best friends as someone ________ they can turn when in trouble.
A. to which B. on whom C. to whom D. with whom
He is always serious and doesn’t like _____.
A. play jokes B. being played jokes on
C. being played jokes D. to play joke on others
No one knows when such a custom first _____.
A. came into power B. came into being
C. came true D. came out
The students pretended_______ attentively when the teacher came in.
A. to learn B. learning C. and learned D. to be learning
________ he returns to his native land.
A. It is long that B. It is not before long that
C. It won’t be long before D. It will be long until
