问题
单项选择题
The socks were too small, and it was only by（）them that he managed to get them on.
A.spreading
B.extending
C.lengthening
D.stretching
答案
参考答案：D
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The socks were too small, and it was only by（）them that he managed to get them on.
A.spreading
B.extending
C.lengthening
D.stretching
参考答案：D