to do与doing选哪个

to do与doing选哪个 be determined to do与be determined to doing,哪个在英语中是正确的? it's worthwhile to do 与 it's worthwhile doing 哪个对?是否有区别? his father always asks him ____his homework.( a.to do b.do c.doing )选哪个 important ＋to do/for do/for doing,哪个正确? 哪个短语对?：after doing ,after do ,after to do i wish后面加to do ,doing,do?哪个? report to do与report doing区别 want to do 与 want doing区别 use to do与doing的区别 is to do与is doing区别 stop to do 与 stop doing的区别,forget to do 与 forget doing的区别 do nothing but do there is nothing to do but do/doing用哪个?举例说明.它与nothing but有什么区别 i'm used to( ) this kind of job?A doing B do 选哪个? learn to do 和learn doing哪个对 be up to do 还是 be up doing 哪个对 I think it is right____him_____the work A for,to do B for,doing C of,to do D of,doing选哪个,为什么 suggest sb____ sth (do/to do)doing和to do哪个好？还是都能用？