两道英语选择题，请告诉正确我选项，并指明原因何止两个句子的结构区别，多谢。
Thehall______byDoctorliinthe1980scanholdabout6000people.AisfoundBfoundCfoundedDwasfou...
The hall ______ by Doctor li in the 1980s can hold about 6000 people.
A is found B found Cfounded D was founded
Few foreigners know the Chinese Communist Party______in 1921
A found B founded C was found Dwas founded 展开
A is found B found Cfounded D was founded
Few foreigners know the Chinese Communist Party______in 1921
A found B founded C was found Dwas founded 展开
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