问题
选择题
If there's a lot of work _____, I'm happy to just keep on until it is finished. |
A. to do B. to be doing C. done D. doing |
答案
答案:A
If there's a lot of work _____, I'm happy to just keep on until it is finished. |
A. to do B. to be doing C. done D. doing |
答案:A