An awful accident however occur the other day. [ ]A. does B. did C. has to D. ha
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![An awful accident however occur the other day. [ ]A. does B. did C. has to D. ha](/pic/43_1421734.jpg)
An awful accident ______ however occur the other day.
[ ]
A. doesB. did
C. has to
D. had to
试题答案
B
![An awful accident however occur the other day. [ ]A. does B. did C. has to D. ha](/pic/43_1421734.jpg)
An awful accident ______ however occur the other day.
[ ]
A. doesB