6. Hand me that pamphlet before you leave, will you.？
[A] novel [B] comb [C] brochure [D] note
7. Revealing military secrets is tantamount to treason.
[A] equivalent to [B] more serious that [C] different from [D] trivial when compared with
8. Diffusion is the spontaneous spreading of matter caused by the random movement of molecules.
[A] patternless [B] whirling [C] constant [D] rampant
9. It required a great deal of water to quench the fire.
[A] scorch [B] thrash [C] put out [D] depress
10. The particles in the atmosphere can affect the Earth's climate.
[A] air current [B] dust [C] clouds [D] rays