问题
选择题
Because of his illness, he _____ the visit to Canada scheduled next week.
[ ]
A. carried out
B. suffered from
C. answered back
D. called off
答案
答案：D
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Because of his illness, he _____ the visit to Canada scheduled next week.
[ ]
A. carried out
B. suffered from
C. answered back
D. called off
答案：D