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高中英语两道选择题___________,I lost heart in English learning, but m

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高中英语两道选择题
___________,I lost heart in English learning, but my teacher often said to me,"keep on working hard;you will succeed_________"
A At a time;in time
B At one time;on time
C At a time;on time
DAt one time;in time

The bank is reported in the local newspaper,________in broad daylight yesterday.
A being robbed
B having been robbed
C to have been robbed
D robbed
答案D,C(请给出详细解释好吗)
高中英语两道选择题___________,I lost heart in English learning, but m
At one time是一度,从前的意思,这里作一度讲,At a time是每次的意思,in time有及时,最终的意思,这里作最终讲.
be reported to do 为固定用法意为“被报道……”,由此可以排除A,B; to have been robbed 是动词不定式的完成形式,说明不定式的行为发生在谓语动作之前.