:高二英语必修三Unit5单元测试：Canada-The_True_North

　　C. was official announced; seriously D. was officially announced; slightly

　　7. Foreign visitors will be amazed ______ the art work of three cowboys on horseback ______

　　a crowd of cows back home along a road on the Rocky Mountains on one broad maple leaf.

　　A. seeing; driving B. to see; to drive C. to see; driving D. seeing; to drive

　　8. The worried general was looking at the map when the idea of the enemy’s attack might be

　　launched ______dawn ______ his mind.

　　A. at; crossed B. at; to cross

　　C. before; came across D. after; went over

　　9. My father seems to have a natural gift _____ treating frostbites(冻伤). ______ , he is able to

　　cure it.