A.deteriorateB.relieveC.improveD.circulate
A. deteriorate
B. relieve
C. improve
D. circulate
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A.peakB.topC.summitD.height
A. peak
B. top
C. summit
D. height
A.intervalsB.sessionsC.periodsD.intermission
A. intervals
B. sessions
C. periods
D. intermission
The change in family size has affected the size of houses needed.
A. True
B. False
Living underground can help reduce the cost of heating and lightening.
A. True
B. False