This boy is Carl .改成一般疑问句现在完成是是什么

This boy is Carl .改成一般疑问句现在完成是是什么 This jacket is yellow 和That boy is jim Green怎么改成一般疑问句? This is a boy.改为一般疑问句 THis is my sister改成一般疑问句 This is my school.(改成一般疑问句) this is pen?怎么改成一般疑问句 This is a phone改成一般疑问句 This is my pencil改成一般疑问句 this is a pen改成一般疑问句 This is my friend Harry改成一般疑问句是什么,特殊疑问句又是什么 The boy is tall and strong.怎么改成一般疑问句? 怎样把 The boy is playing basketball.改成一般疑问句