Some countries are increasing their use of natural gas, and other forms of ______.
| A．source | B．material |
| C．power | D．energy |
. A story goes ________ Elizabeth I of England liked nothing more than being surrounded by clever and qualified noblemen at court.
| A．when | B．where | C．what | D．that |
. Information has been put forward ________ more middle school graduates will be admitted to universities.
| A．while | B．that | C．when | D．as |
. Evidence came up ________ specific speech sounds are recognized by babies as young as months old.
| A．that | B．whose | C．which | D．what |
. The theory is of great important ________ the hotter a body is, the more it radiates.
| A．that | B．when | C．which | D．what |
. There’s a feeling in me ________ we’ll never know what a UFO is – not ever/never.
| A．that | B．which | C．of which | D．what |