3.Wewanttogiveallchildrenaworld________violence.
A. strippedoff
B. thrownaway
C. takepleasurein
D. freeof/from
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4.Thenewsystemdesignedto________harmfulemissionsfromfactorieswillbeputintousesoon.
A. curb
B. dump
C. polish
D. stuff
5.Thankstothe________ofairtransport,everyoneisfreetogoanywhereatanytime.
A. effectiveness
B. efficiency
C. efficient
D. effective
1.She'd refusedtoconsiderapracticalcar____goodgasefficiencyandeasytopark.
2.Justyesterdayyouwatchedcartoons.Whatchanged____yesterdayandtoday?