Has he ____(wait) for an hour yet?

I_(wait)here for an hour,but he hasn't come yet.如何填空 she has been wait for an hour she has waited for an hour 二者的 He kept me ( )(wait) for him for an hour yesterday He kept ---(wait) for her for about half an hour. He has worked for ____ hour Jim kept me ____(wait) for almost half an hour Has he done his homewoke yet?Yes,he ____it an hour ago Has he finished his homework yet?Yes,he _____ it an hour ago He has been swimming for an hour对“for an hour”提问 He ____(keep) standing outside for an hour yesterday because he has been in the cinema for an hour是什么时态, He has to do homework for an hour day every day改为否定句