C. tried to
D. failed to
7. All the ______ thinking people support the freedom struggle of the Black people of South Africa.
A. forward
B. advanced
C. progressive
D. improving
8. A ______ means the head of some universities, colleges, and schools.
A. Principle
B. Minister
C. Principal
D. Dean
9. A stranger attacked an old man in the train and ______ him of all his money.
A. stole
B. deceived
C. forced
D. robbed
10. These insects can ______ the color of their background, so that their enemies can't see them.
A. take on
B. take to
C. take over
D. take in
