问题
选择题
We were ____ giving up ____ they came to help us out. [ ]
A. at the point of; when
B. on the point of; when
C. on the point of; while
D. about to; when
答案
答案：B
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We were ____ giving up ____ they came to help us out. [ ]
A. at the point of; when
B. on the point of; when
C. on the point of; while
D. about to; when
答案：B