问题补充:
enough time, but he couldn’t do it better.
A. He was given
B. Given
C. To be given
D. Though he was given
答案:
A. He was given
B. Given
C. To be given
D. Though he was given
解析:题意:已经给了他足够的时间,但是他能做的更好。因为but是并列连词,后面是个句子,前面也一定是个句子,而不是一个分词短语或不定式短语,更不能再用连词though,所以排除B、C和D。