Towriteuphisnovel,Johnislookingforanenvironmentfree________outsidedistraction.
A、onC
free from… 使人摆脱…，不受…的，没有…的
Perseverance is a kind of quality and that is _______ it takes to do anything well.
Weweretoldthatthestonefigure_______backtothe16thcenturywasofgreatvalue.
Moderneconomics________thecountry’sagriculturalpolicies.
Amongthefollowingwords,“______”doesNOThaveinflectionalaffixes.
Theprofessorworkedfor7hoursata________.
