Miss Smith is a friend of ______.
|
A．Mary‘s mother’s |
B．Mary‘s mother |
|
C．Mother’s of Mary |
D．Mary mother‘s |
The air in big cities _____very dirty by factories.
|
A．are often made |
B．is often made |
C．have often made |
D．has often made |
The police ____the murderer everywhere when he suddenly appeared in a theatre.
|
A．is searching for |
B．were searching for |
C．are searching for |
D．were searching |