n. the outside or top layer of sth.
A. stability
B. scale
C. surface
D. session
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n. either of a pair of thin pieces of clothing that fit closely over a woman's legs and feet
A. stocking
B. stripe
C. sleeve
D. stability
a. deficient in quantity or number compared with the demand;
A. supreme
B. severe
C. startle
D. scarce
vt. to make sth. easier to do or understand
A. stare
B. stimulate
C. simplify
D. suspend
a. artificial; made by combining chemical substances rather than being produced naturally by plants or animals
A. skillful
B. synthetic
C. sophisticated
D. static