A new report ____ on Monday by the Census Bureau ____ a sophisticated method to measure poverty rates has found that 46.6 million Americans are living in poverty.
| A．released;used | B．releasing;used |
| C．released;using | D．releasing;using |
Although he knew little about the large amount of work done in the field, he succeeded_____ other more well-informed experiments failed.
| A．which | B．that | C．what | D．where |
On the third floor there are two rooms, _____ is used as a meeting-room.
| A．one of them | B．the largerof which |
| C．and a larger of of them | D．the largest one of which |
--- Are you familiar with the music ?
--- Yes. There was a time _____ this kind of music was quite popular.
| A．when | B．that | C．with which | D．about which |
.He has got himself into a dangerous situation ____ he is likely to lose control over the plane.
| A．where | B．which | C．while | D．why |
The passenger was very impolite to the conductor, ____ , of course , made things even worse.
| A．who | B．whom | C．which | D．what |