TheMississippi,whichissometimescalled________,hasplayedavitalroleinthehistoryoftheUnitedStates.
WhichofthefollowingisNOToneofthemainsourcesofnewwordsinthepresent-dayEnglishvocabulary?
Amongthefollowingwords,“______”containsanegativeprefix.
Wordsthatareidenticalonlyinspellingbutdifferentinsoundandmeaningarecalled______.
我就担心丧失机会。不抓呀，看到的机会就丢掉了，时间一晃就过去了。（）
