This problem was very difficult.Lily couldn't ____问选项work it out 和work out it的区别

This problem was much more difficult than i ____ (expect). The factory was correcting this problem (yesterday)说法对吗? This problem was so difficult they couldn't solve them.改写句子This problem was ( ) difficult ( ) ( ) ( ) solve. 英语翻译problem was this is a （ ) problem The game was ver exciting!用what ,how 改感叹句 When he was ver young,Bill____ ____pictures very well The_(对话)was ver constructive co-operative and helpful. 新概念英语同步测试卷连词成句,it so that this was easy problem was soon solved this did not prove to be a problem.与 this was not a problem 在意思上有什么区别?可否改成：this prove to be not a problem 那时他正在努力地算出这道数学题He was trying hard to _____ _____ this maths problem at that time. This problem was very difficult.Lily couldn't ____问选项work it out 和work out it的区别 but this was not ___to be a problem.1 demonstrated 2 thought 3 shown 4 found 选择哪一个,及为什么 Please help me this problem. This problem is very___for her. I was looking for a book this morning.I'ver found it now变成定语从句.变成I've found the book which I was looking for this morning.有没有错?还是必须去掉this morning.如果去到,为什么? 我安装ivt bluesoleil时出现 This application has failed to start because setup.dll was not found.re-installing the application may fix this problem Run the Kaspersky Anti-Virus tool to fix this problem蓝屏俄~This problem was caused by Kaspersky Anti-Virus,which was created by Kaspersky Lab.To solve this problem,you will need to run the automatic update tool that comes with Kaspersky Anti-Viru