Tipping is neither encouraged nor common, although visitors may reward special services if they wish, _________ 10% of the bill is enough.
A which B where C in which D in which case
Calculations，which are astronomically exact，have been made ________ with the use of computers.
| A．possible | B．it possible |
| C．possibly | D．to be possible |
What do you think of the suggestion ________ we organize a football club?
| A．which | B．whether |
| C．that | D．what |
—Did you remember the days ________ we studied in the university?
—Certainly.Especially the hard times ________ we spent together.
| A．which；when | B．when；which |
| C．when；when | D．which；which |
There is a ________ cup on the table.
| A．nice new big plastic | B．new plastic big nice |
| C．nice big new plastic | D．new nice plastic big |
The boy went swimming in the deep lake，________ his mother’s fear for his safety.
| A．but for | B．regardless of |
| C．apart from | D．instead of |