How long do you think it will be I can go back to work?A. beforeB. whenC. untilD. that

问题补充：

How long do you think it will be I can go back to work?

A. before

B. when

C. until

D. that

答案：

(答案→)A. before

B. when

C. until

D. that

解析：考查连词，A. before在…之前；B. when当…时候；C. until直到…；D. that指起连接作用，没有任何意义，句子意思“你认为我回去工作需要多长时间”