[ Vocabulary ]
Must have the same variable and same exponent
A. Like Terms
B. Algebraic Expression
C. Coefficient
D. Constant
E. Distributive Property

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Grammar and Vocabulary › ViewI ……………. on the bus when I dropped my wallet.
A. am getting
B. have gotten
C. get
D. was getting
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Just look at this room! How _____________________you make such a mess?
A. could
B. might
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A. watched
B. were watching
C. watching
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The gardener ____ the hedges (树篱) every month.
trim = 修剪
A. trim
B. trims
C. trimmed
D. trimming
