enough time but I couldn’t do it better. A. I was givenB. GivenC. To be givenD. Though I

问题补充：

enough time, but I couldn’t do it better.

A. I was given

B. Given

C. To be given

D. Though I was given

答案：

(答案→)A. I was given

B. Given

C. To be given

D. Though I was given

解析：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。