He insured his car ________ he had an accident.
A、unlessD
他给自己的汽车投了保，以防万一遇到交通事故。考查连词词义区分题。A否则，要不然B如果C自从，由于D以防万一，以免
A mong the following words, “ ______ ” does NOT have inflectional affixes.
CollinsCOBUILDEnglishLanguageDictionary(1987)hassomeuniquefeaturessuchasdefinition,extracolumnand______.
Agoodworkerinakeyspotcould,so_______ashekeptupproduction,takeallthecoffeebreakshewanted.
—David has made great progress recently. — _______，and _______.
WhichofthefollowingwordsdoesNOThavesuffixes?
