1 . You’d better book the tickets in advance; _______ we may miss the concert.

A．however

B．therefore

C．nevertheless

D．otherwise\

2 . The national parks are very important for the protection of these wild animals，which would _____ run the risk of becoming dying out．

A．therefore	B．instead
C．otherwise	D．anyhow

3 . —Irene, do you really want to go out?
—It may rain. ___________, I will go out; I don’t mind the rain.

A．Anyhow	B．Otherwise
C．Somehow	D．Therefore

4 . Your coat is smarter than mine, but mine is _________ cheaper than yours.

A．somewhat

B．a lot of

C．well

D．so

5 . Thinking that the students were having an evening class, the teacher left the classroom, _____.

A．slowly and gentle	B．slowly and gently
C．slow and gentle	D．slow and gently

6 . ________ too much exposure to wind may cause the dryness of skin, so too much exposure to the sun may result in cancer.

A．Just as

B．While

C．If

D．Now that

7 . Hobbies offer knowledge and relaxation. ________, they help improve one’s mental and physical health.

A．Furthermore

B．However

C．Therefore

D．Partly

8 . The performer was waving his stick in the street and it ________ missed the child standing nearby.

A．narrowly

B．nearly

C．hardly

D．closely