英文改错题.求详解When it （1）grows dark ,she turned a suitcase into a bed and put the children inside it,（2）covered them with all the clothes she could find.为什麽第一个不改成had grown而改成grew?第二个为什麽改成cove

英文改错题.求详解When it （1）grows dark ,she turned a suitcase into a bed and put the children inside it,（2）covered them with all the clothes she could find.为什麽第一个不改成had grown而改成grew?第二个为什麽改成cove 短文改错 求详解 英语单句改错When it comes over this issue,students offer their various answers.哪错了,要详解. 英文改错：Please look it after first. 12题）求详解. 1,2题求详解. 求,1,3题详解. 求1,2题详解 when's your sister birthday?it's in sunday改错 改错When he woke up,it has already stopped raining When was it you decided to go to Beijing?改错! 一道数学的函数题求解答.（题目是英文的）The polynomial f(x)=mx^3-5x^2-nx+4,where m and n are constants,leaves a remainder of R when it is divided by(x-1) and a remainder of 2R-28 when it is divided by (x-2).Show that 5m=2n+7 did ginger get wet when it rained?请问这个when是怎么用的?did ginger get wet when it rained?请问这个when是怎么用的?怎么能放在句子中呢?求详解 改错:When did they arrive Beijing?如题 改错:When did they arrive Beijing?改错:When did they arrive Beijing? 英语改错问题It was on October 1st 1949 when the People's Republic of China was founded. You would better keep the dictionary ___you can get it when using it A where B in which到底为甚么呢 求详解 求详解第七题.....求详解 求英语改错题