Tom fell into the lake while he was boating .

Tom fell into the lake while he was boating . He fell of the bike while riding还是while he was riding?是不是都对? while he came into the room,i was watching TV. While the singer was singing,he fell off the stage and hurt But while he was going across the lake in a boat,his bag fel the child fell sleep while he was doing his home work哪里错了 the child fell sleep while he was doing his home work(=@__@= the monkey was very afraid and he and his car fell into the He fell asleep while (he was) doing his homework A little girl was seen to fall into the lake by a PLA man.he Jack fell into the river yesterday ,but think of ,he was sav The thief ___ (catch) while he was climbing into the window.