Aburningcigarettehethrewintothewastepaperbasket________firetothehotel.
A. set
B. madegave
C. gave
D. caught
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Mumhadno________ofmyuncle’sarrivingsothatshedidn’tprepareanyfood.
A. news
B. knowing
C. memoaware
D. aware
Many touristsagreedwiththeguidethatthereissometimesetasideontheschedulefor________everyevening.
A. fun
B. entertainment
C. pleasure
D. playMany
Tohissatisfaction,everything_______wellintheexperiment.
A. turnedagainst
B. turnedup
C. turnedon
D. turneddown
Onceenvironmentaldamage________,ittakeslongtimefortheecosystem(生态系统)torecover.
A. help
B. istodo
C. hasdone
D. isdone