B是被动先排除
have been doing表示过去一直在进行,这里有all the time强调一个持续性,所以用进行时,D排除
如果谓语是realize,那么应该选C,这里是realized过去时,前后时态一直,所以选A
我已经很久没接触语法了,错了不要喷我.
After searching for half an hour ,she realized that her glas
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