1□□□□□□□□□□□□□□□□□□□studybestudying(□study□□)□□□□□□□□havestudiedhavebeenstudyingDDDDDDDDD□□□□□□16□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□a□ □studiedbestudyinghadstudiedhadbeenstudying□ □willstudywillbestudyingwillhavestudiedwillhavebeenstudying□ □□□wouldstudywouldbestudyingwouldhavestudiedwouldhavebeenstudying□ □□Tense 叮叮叮叮叮叮叮叮叮叮叮叮叮口□□□□□□□□□□□□□□□□□□□□□□□□□□□□1
□□□□□□□□A)□□□□□□□□□□□□□□□□□□□B)□□□□□C)□□□□□□□□□□□ □Healwayshelpsothers
□□□□□□□□□□D)□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□E)□□□□□□□□□□□□□□□□□□□□□□□□□□□□“叮□□□□□□□□□□□□□□"□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□ □Thenexttrainleavesat3o'clockthisafternoon
□ □□□□□□□□□3□□□□□Howoftendoesthisshuttlebusrun
□□□□□□□□□□F)□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□ □Whenyouhavefinishedthereport,Iwillhavewaitedforabout3hours