Theprofessorworkedfor7hoursata________.
A
此题考查的是固定词组搭配。 at a stretch 一口气地
Generally,adictionarycoversthefollowingcontentsEXCEPT______.
Ifyoutrytolearntoomanythingsatatime,youmayget________.
WhichofthefollowingisNOToneoftheextra-linguisticfactorsthatcausechangesinmeaning?
Wordsthatareidenticalonlyinspellingbutdifferentinsoundandmeaningarecalled______.