Now there are only 90 days left before the test.为什么用left

There used to be only school here,but now there are a few school. Now there are only 60 days ______ before the final exam. Now there are only 90 days left before the test.为什么用left 改错并解释一下为什么?Now there are only 90 days being left before the test In the small village ,there are only nice _____(family ) now. there were a lot of birds here in the p----,but now there are only a few ,补全单词 帮忙翻译erery year over 29000 of my friends are killed and now there are only 72000 of us left There are only some apples 现在这本书只有5册了.Now there are only five copies of this book still___ ___.中译英 用所给单词的正确形式填空 In the village,there are only nine （family）now. in the small Village,there are only nine_____(family)now用括号内单词的适当形式填空 Christmas from now there is only a week中there there are only seven students.为什么要用only Now ,there are some reasons.first How many _____(sheep) are there on the hill?The baby has only two_____(tooth) now.用所给名词的适当形式填空. It is true that there are only a few things that can make me happy right now and it seems hopeless.请帮忙翻译下,多谢 英语翻译Now there are probably only 1,000 finless porpoises in the Yangtze and two lakes linked to it,said Wang Ding,a researcher from the CAS. 现在这本书只有5册了.Now there are only five copies of this book still___ ___.中译英 ,急