问题
选择题
It snowed heavily last night and we had to use thick sticks to _____ the roof of the hut. [ ]
A. hold on
B. hold up
C. hold back
D. hold out
答案
答案：B
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It snowed heavily last night and we had to use thick sticks to _____ the roof of the hut. [ ]
A. hold on
B. hold up
C. hold back
D. hold out
答案：B