adoesn?tbdoescisdisn?t10let?stakeashortresadowebaren?twecwillyoudshallwe11hundredsofpeoplelosttheirlivesintheaccidentthey 用 when 或者 while 填空 1.___ Margo was talking on the phone, her sister walked in. 2.___ we visited the school, the children were playing games. 3.___ Sarah was...