1.Have you ever been annoyed when ____ to yourself after mob

1.Have you ever been annoyed when ____ to yourself after mobile phone power off?
为什么用left talking 不用being left talking
2.She sat there without her shoes on,________.A.watching B.watched C.looking D.looked
3.Between the windows hang the pictures of different styles 句中hang为什么要用
4._____ he stayed in England ,he visited some of his friends.
A.When B.During C.For D.In为什么用When 不用During