21. Why are you so ________ about that old coat? Although it is a gift from you grandfather, it is almost worn out.
A) self-evident
B) seldom
C) sentimental
D) sensitive
22. My mother tells me to keep meat ________ from other food in the refrigerator.
A) separated
B) separate
C) significant
D) severe
23. These two brothers had been ________ for 40 years before they met again last week.
A) separated
B) separate
C) significant
D) severe
24. She is absent from school today because she is suffering from a ________ toothache.
A) separated
B) separate
C) significant
D) severe
25. Albert Einstein, the author of the Theory of Relativity, made a ________ contribution to physics in the twentieth century. .
A) separated
B) separate
C) significant
D) severe
26. She seldom plays basketball, so she isn't ________ at playing it.
A) sociable
B) skillfull
C) specializing
D) social
27.Jane just moved here, and she tried to be ________ to everyone, being friendly ; and willing to talk to others.
A) sociable
B) skillfull
C) specializing
D) social
28.Because of his poor ______ skills, Nick has very few friends.
A) sociable
B) skillfull
C) specializing
D) social
29. She married a man ________ in mechanical engineering.
A) sociable
B) skillfull
C) specializing
D) social
30. Your explanation is too general to understand; you should try to be more ________.
A) spiritual
B) specific
C) strict
D) stressed
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