时态转换是否正确We had learned (learn) about 800 words by the end of

时态转换是否正确We had learned (learn) about 800 words by the end of We had learned (learn) about 800 words by the end of this ye We had learned about 1200 english words by the end of last t We had learned over three thousand words by the end of last We had learn 1,000 English words by the end of last month.我的 we ________(learn) about 4000 English words by the end of la They ____（learn）about eight hundred words by the end of last by the end of this term,we ___(learn)5000 english words.应该填什 英语语法1)We had learnen ( ） English words by the end of last ye We had learned 1,000 english words ___the end of this term. how many words ----- we ------ by the end of this term? How many English words have you learned by the end of last t