the coolest thing was the belt.改成疑问句应该怎么改

the coolest thing was the belt.改成疑问句应该怎么改 why was the belt the coolest thing? the coolest thing was the belt.(就划线部分提问） And the coolest thing was the I think the coolest thing of all ___ (be) the belt in my o____,i think the coolest thing is the belt ---What do you think_____the coolest thing?---Flying in the The pen is red改成一般疑问句怎么改 The floor is wet 改成一般疑问句怎么改 He was in the ciassroom怎么改一般疑问句 My brother was in the park just now改成一般疑问句可以这样改么... The bin was full改成一般疑问句