1 . During the walk and my stay here in the town, I saw the fish ________ by people.

A．feed

B．feeding

C．fed

D．being fed

2 . ________going to study in the United States, Dahlia began to pack her luggage.

A．To approve of	B．Approving of
C．To be approved of	D．Having been approved of

3 . ______ to dinner at a university, he was put on the spot when the president suddenly asked him to give him a speech.

A．Having been invited

B．invited

C．inviting

D．Being invite