I used to drink a lot of coffee, but these days I _____ tea.
| A．prefer | B．am preferring |
| C．have preferred | D．preferred |
“We can't go out in this weather，”said Bob，________out of the window.
| A．looking |
| B．to look |
| C．looked |
| D．having looked |
It is widely accepted that young babies learn to do things because certain acts lead to________.
| A．rewards |
| B．prizes |
| C．awards |
| D．results |
There was such a long queue for coffee at the interval that we ________gave up.
| A．eventually |
| B．unfortunately |
| C．generously |
| D．purposefully |
An invention is a new way of solving a problem, so try our best to think of many ________and unusual ways.
| A．varying |
| B．variety |
| C．varied |
| D．variation |
This photo of mine was taken ________stood the famous Eastern Bright Pearl in Shanghai.
| A．which |
| B．in which |
| C．where |
| D．there |