It was not until she collected enough material to create her new novel.
| A．did she begin | B．when she began |
| C．that she began | D．that did she begin |
相关试题
My sister，an inexperienced rider，was found sitting on the bicycle _________ to balance it．
| A．having tried | B．trying |
| C．to try | D．tried |
_________ in the fields on a March afternoon，he could feel the warmth of spring．
| A．To walk | B．Walking |
| C．Walked | D．Having walked |
_________ to reach them on the phone，we sent an email instead．
| A．Fail | B．Failed |
| C．To fail | D．Having failed |
We went right round to the west coast by __________ sea instead of driving across _________ continent. 
| A．the … the | B．/ … the | C．the … / | D．/ … / |
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