1 . _________(adopt) the teacher’s advice, the boy solved the problem easily.

2 . ________ the programme, they have to stay there for another two weeks.

A．Not completing	B．Not completed
C．Not having completed	D．Having not completed

3 . At the beginning of class, the noise of desks ___ could be heard outside the classroom.

A．opened and closed	B．to be opened and closed
C．being opened and closed	D．to open and close

4 . The flowers _________sweet in the garden attract the visitors to the beauty of nature.

A．smells

B．smelling

C．being smelled

D．smelt

5 . of the danger in the street at night, she went home with a friend       her.

A．Having been warned; accompanying

B．Warning; accompanying

C．Having warned; accompanying

D．Warned; accompanied

6 . ______, the conference began.

A．The candidates having taken their seats

B．The candidates had taken their seats

C．Taken their seats

D．Taking their seats

7 . Having been attacked by terrorists, ____________________     .

A．the tall building collapsed

B．doctors came to their rescued

C．an emergency measure was taken

D．warnings were given to tourists

8 . ________ from heart trouble for years, Professor White has to take some medicine with him wherever he goes.

A．Suffered

B．Suffering

C．Having suffered

D．Being suffered

9 . ____ a letter from her parents, Lily is now looking forward to ___ from them.

A．Having not received; hear	B．Not received; hear
C．Not having received; hearing	D．Receiving not; hearing

10 . ________ at the cafeteria before, Tina didn't want to eat there again.

A．Having eaten	B．To eat
C．Eat	D．Eating