－Have you known Dr Jackson for a long time?
－Yes，since she the Chinese Society．
| A．has joined | B．joins | C．had joined | D．joined |
Can you think of some cases ________ people can communicate only by means of body language?
| A．that | B．which | C．where | D．when |
.A great number of students said they were forced to practise the piano.
| A．to question | B．to be questioned |
| C．questioned | D．questioning |
I like _____ in spring when everything turns green and active.
| A．one | B．it | C．that | D．this |
You can imagine what difficulty we had __________ home in the snowstorm.
| A．walked | B．walking | C．to walk | D．walk |
We hurried to the station, ________ the train was gone.
| A．to find | B．finding | C．found | D．only to find |