
_________ the end of this year, they will have learned l,000 English words. [ ...
_________theendofthisyear,theywillhavelearnedl,000Englishwords.[]A.AtB.ByC.InD.From...
_________ the end of this year, they will have learned l,000 English words. [ ] A. At B. By C. In D. From
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