1 . I'm lucky to have the opportunity to participate in the national dancing competition           our school.

A．in favor of	B．in memory of
C．in honor of	D．on behalf of

2 . ______ struggles and setbacks, laborers are taking their fate into their own hands.

A．In exchange for

B．In spite of

C．On behalf of

D．On account of

3 . He spoke_________ _________ _________(代表) all the members of the faculty and staff. （根据汉语提示完成句子）

4 . ______of all the staff,I would like to wish you a happy retirement.

A．In honour

B．In place

C．On behalf

D．On account

5 . The law requires that everyone should be equal ________ race, religion or sex.

A．in search for

B．in support of

C．on behalf of

D．regardless of

6 . The book was written ______ careful observations and detailed studies.

A．on behalf of	B．regardless of
C．on the basis of	D．in relation of