He regretted______unable to visit you earlier.A to be B to have been Cbeing D having been.

he he He ( )( )he( he teach math. 氦He还是HE did he------------?yes,he---------------- he remind he 还是he remind him?~~~~~~~~~~~ he back miss he He looks HE BE He said he thinks 还是 He said he thought He mother he is board he “He was he is he is