Generally speaking, the music of one country is quite a lot in ______ with its culture.
| A．use | B．common | C．order | D．same |
His purpose ________ going to the US is ________ for his uncle.
| A．of；looking |
| B．in；looking |
| C．in；to look |
| D．of；to look |
The scientist________ the behavior of the mice after they were given the drug.
| A．looked |
| B．observed |
| C．noticed |
| D．watched |
It may rain，but I shall go out ________.
| A．somehow |
| B．anyhow |
| C．somewhat |
| D．anywhere |
Though plastic bags really bring convenience to us，they also ________ many problems for the environment.
| A．lead to |
| B．refer to |
| C．contribute to |
| D．appeal to |
He was observed ________ into the house before the owner came back.
| A．to slip |
| B．slip |
| C．slipping |
| D．slipped |