how was your school trip?
how was your school trip?为什么用was而不用does
does是在第三人称用的。比如他him
答:i read about it in some book or es it matter ______it was? where, what, how, wh...详情>>
问:电暖气有辐射没? 这种电暖气不是小太阳的那种 而是壁挂式的 好像是PTC陶瓷...
答:只要是电器都是有辐射的,只要辐射不大就没事的,离你稍微远一些详情>>