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With all the material she needed ____, she started to work o

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/10 13:01:05
With all the material she needed ____, she started to work on her thesis (论文).
a、being collected
b、having collected
c、collecting
d、collected
单选
A
第一个分句中 all the material 是主语 she neede做定语 从句意分析知道 材料是被收集的 所以用be done 的形式 结合语境 用being collected