初二英语（用“since”和“for”填空）

初二英语（用“since”和“for”填空）1.Jim has been sleeping _____ nine o'clock.2.Lucy has been running _____ half an hour.3.Sarah has been talking on the phone ______ five minutes.4.Louis has been studying Chinese ______ he was six years old.5.I've been practicing the piano _____ half past ten.