Occasions are quite rare ______ I have the time to spend a day with my kids.
| A．when | B．which | C．why | D．who |
_______ book of this writer is East and West.
| A．Known to be the best | B．It was the best known | C．Known as the best | D．The best known |
All the rooms are _______ with electric light.
| A．supplied | B．given | C．offered | D．burnt |
We waited _______ for the bus.
| A．long time | B．a long time | C．the long time | D．some long time |
The first textbook _______ for teaching English as a foreign language came out in the 16th century.
| A．having written | B．to be written | C．being written | D．written |
Careless driving _______ a lot of highway accidents.
| A．affects | B．makes | C．causes | D．results |