The children have been playing with my hat and they have knocked it out of ______．
| A．order | B．date | C．balance | D．shape |
.
The house caught ______ fire while they were away. It must have been set ______ on fire by someone.
| A．a; a | B．a; / | C．/; a | D．/;/ |
.
_______ the argument sounds reasonable, it still needs support of evidence.
| A．Since | B．Whether | C．Although | D．As |
.
.Modern China is experiencing a completely new period ______ respect for science and creativity has become the guiding principle of the society.
| A．which | B．where | C．that | D．in which |
.
Britain, ______ many other industrialized countries, ______ major changes over the last 100 years.
| A．together with; have experienced | B．as well as; have experienced |
| C．in common with; has experienced | D．instead of; has experienced |
.
As the newspaper reported, the talks were held in an open, friendly, cooperative and constructive ______.
| A．environment | B．atmosphere | C．condition | D．situation |