What’s the noise ? It sounds as if it comes from upstairs. --______. It must be the window-cleaner working , next door.
----Many happy returns of the day! ----____.
----Help yourself to some apples and grapes, please. ----_____.
The teacher as well as a number of students____to attend the party yesterday.
Miss Wilson, whose parents are____ working in China, is studying in Peking University now.
---What do you think worries him so much? ----____.