__________ , he is not yet ready to turn professional.
| A．Gifted though is he | B．Gifted as is he | C．Gifted as he is | D．Though is he gifted |
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 |
We won’t give up _______ we should fail ten times.
| A．even if | B．since | C．whether | D．until |