6. The discussion was so prolonged and exhausting that _______the speakers stopped for refreshments .
(A) at large (B) at intervals (C) at ease (D) at random
7. When traveling, you are advised to take travellers' checks, which provide a secure _______to carrying your money in cash.
(A) substitute (B) selection (C) preference (D) alternative
8. I never trusted him because I always thought of him as such a ________character.
( A) gracious (B) suspicious (C) unique (D) particular
9. Changing from solid to liquid, water takes in heat from all substances near it, and this ________ produces artificial cold surrounding it.
(A) absorption (B) transition (C) consumption (D) interaction
10. I didn't say anything like that at all. You are purposely my ideas to prove your point.
(A) revising (B) contradicting (C) distorting (D) distracting
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