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

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 There are six days left before we left There are only five minutes left before the train leaves.You There is only one week left before the 英译汉 There is only one week left before the exam 翻译:There is only one week left before the exam. Now there are only 60 days ______ before the final exam. There is only one week left before the exam.这句话中的left是什么用法?怎 There are only fiveminutes ( )leave括号里为什么填Left if there are three days left there are only ten minutes left里的left是什么意思?