2 . Sally, ______ the remote African village over a decade, was going to bring its history to others in a relatively relaxing environment.

A．having explored

B．being explored

C．explored

D．exploring

3 . Teachers must ________ rules for the students to follow while they are at school.

A．establish

B．explore

C．seal

D．revive

4 . Playing football is so fun that it ________millions of people.

A．attracts

B．explores

C．reminds

D．survives

5 . The man is bad-tempered and tends to _____ at any moment over the least thing.

A．explore

B．expose

C．expand

D．explode

6 . He listened carefully as if he could ________ his mother’s footsteps from the crowd.

A．determine

B．react

C．explore

D．distinguish

7 . The campus was so beautiful and quiet that I wanted to ___________it.

A．change

B．explore

C．attack

D．decorate

8 . When we are feeling sorry for ourselves we should________that there are others less fortunate than we are.

A．arrange

B．dismiss

C．reflect

D．explore