A. maintain B. improve C. assess D. protectA great deal……

单项选择题At 90, many individuals still remain healthy and energetic.()

A. intelligent
B. rough
C. robust
D. revivable

单项选择题To flame up his boss, Dick had to make up evidence().

A. collect
B. disclose
C. invent
D. generate

单项选择题He was said to have been removed from the position of manager for a recent conflict with an important customer().

A. dismissed
B. released
C. picked
D. exposed

单项选择题These factors interact intimately and cannot be separated().

A. tensely
B. nearly
C. carefully
D. closely

单项选择题I rarely play cards().

A.naturally
B.seldom
C.often
D.usually