问题
选择题
—I want to know _____ without water.
—About a week. [ ]
A. how long man can live
B. how long can man live
C. when man can live
D. when can man live
答案
答案:A
—I want to know _____ without water.
—About a week. [ ]
A. how long man can live
B. how long can man live
C. when man can live
D. when can man live
答案:A