itisfuntodo还是doing,refusetodo还是doing

超实用英语句型itisadjectivetodo
doingsth最某人来说做某事是怎么样的这里可以说itisfun/interesting
tellsbsthitis thetime forsb todosth.这句话什么意思?谢谢!
2016feelingfun.ppt
it'sbesttodo…squeezeoutoverandoveragainburnedareagetinfectedi