The famous musician, as well as his students, ________ to perform at the opening ceremony of the 2012 Taipei Flower Expo.
| A．were invited | B．was invited |
| C．have been invited | D．has been invited |
Having taken our seats, _______.
| A．the professor began the lecture |
| B．the lecture began in no time |
| C．we were attracted by the lecture immediately |
| D．the bell announced the beginning of the lecture |
The students listened carefully to the teacher with their eyes _____ on the blackboard.
| A．focused | B．to focus |
| C．focusing | D．being focused |
With our knowledge practice , we can make contribution to our society.
| A．to base on | B．basing on |
| C．based on | D．base on |
The most popular food ______ on menus in western countries is hamburger.
| A．include | B．including |
| C．to include | D．included |
There is no greater pleasure than running on the playground, ____ after a ball.
| A．chased | B．chasing |
| C．to chase | D．having chased |