Jack knows a lot about the signs here.〔改为一般疑问句〕 什么 Jack 什么 a

Jack knows a lot about the signs here.〔改为一般疑问句〕 什么 Jack 什么 a There are a lot of signs here.(改为一般疑问句） there are a lot of signs on the grass 改为一般疑问句 jack can write a letter.改为一般疑问句 Jack wants a new computer.改为一般疑问句 There are a lot of signs here.怎么改成一般疑问句? Jack always asks Ben some questions about public signs.改为一般疑 a lot of signs here Jack has a map.变一般疑问句 初一英语难题一.根据首字母完成单词1.Jack is English b( ) he knows a lot about Jack had to do a lot of housework.(改为反意疑问句) Jack has tow computers.（改为一般疑问句） He has a ping-pong ball.（改为