There is growing tendency among middle-school students___________they will do some voluntary work during their vacation.
The headmaster spoke at the meeting for about 2 hours without ________ his notes.
.I imagine she hardly ever writes to you, .
- Would you like to have tea or coffee? - ________.
Joe likes playing ________ football, while his sister enjoys playing ________ piano.
---Li Hong in America for 5 years. --- It’s no wonder that he can speak English so well in China now.