Onewaytounderstandthousandsofnewwordsistogain__________goodknowledgeofbasicwordformation.
Wherewas__________youmetwiththefamousscientist?
—Howareyoutoday?—Oh,I__________asillasIdonowforalongtime.
Noone_________ofit.
Hisbackacheisonly_________fornotwateringtheflowers.
Mr.Smithisingoodhealthnowforitisquitealongtimesincehe__________.