________ Tom liked to eat was different from ________.
| A．That…that you had expected | B．What …that you had expected |
| C．That…what you had expected | D．What…what you had expected |
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 |
—The strong wind has a bad ________ our newly planted young trees.
—What’s more，it ________ many people riding bikes on the road.
| A．effect on；affects |
| B．affect on；effects |
| C．effect in；affects |
| D．affect in；effects |