______ herself with routine office tasks, she had no time to attend to her children.
| A．Occupying | B．Occupied |
| C．Being occupied | D．To be occupied |
Towards ___________ morning, _________ heavy snow began to fall.
| A．the... a | B．an... a |
| C．a...不填 | D．不填...the |
Moreover, __________you may hardly believe, the examiners had decided in advance to fail half the students taking part in the exams.
| A．which | B．that | C．who | D．whom |
You____________ television. Why not do something more active?
| A．always watch | B．too small a car |
| C．have always watched | D．have always been watching |
Some of the suspects ____refused to answer and kept their mouths shut.
| A．questioning | B．being questioned |
| C．questioned | D．to be questioned |
This photo of mine was taken__________ stood the famous high tower.
| A．which | B．in which | C．where | D．there |