Towriteuphisnovel,Johnislookingforanenvironmentfree________outsidedistraction.
A、onC
free from… 使人摆脱…，不受…的，没有…的
Towriteuphisnovel,Johnislookingforanenvironmentfree________outsidedistraction.
Moderneconomics________thecountry’sagriculturalpolicies.
CollinsCOBUILDEnglishLanguageDictionary(1987)hassomeuniquefeaturessuchasdefinition,extracolumnand______.
Aliensareborrowedwordswhichhaveretainedtheiroriginalpronunciationandspelling.WhichofthefollowingwordscomesfromChinese?
Perseveranceisakindofqualityandthatis_______ittakestodoanythingwell.
