Many experts hold the view ____teacher development is _____the key to better education lies.
| A．which, where | B．which, in which | C．that, where | D．that, in which |
Their cheerful voice showed that they were doing ___ .
| A．a thing exciting | B．something exciting | C．a thing excited | D．exciting something |
My students are all quiet.Even after class, my students spend ___as they can playing outside.
| A．as little time | B．little time | C．less time | D．time as little |
The song sounds ___ .doesn’t it?
| A．sweet | B．well | C．moved | D．beautifully |
All these are matters __ attention.
| A．worthy | B．wrothy of | C．worth while | D．worth of |
The sudents were silent as they saw the ___ look on their teacher’s face.
| A．fright | B．frightening | C．frightened | D．both B and C |