问题
Jack took the 8:30 bus to Guangzhou this morning. — Really? He _____ 8:20 Express. It is much more comfortable and faster to travel by train. [ ]
A: could have taken
B: would have taken
C: need have taken
D: must have taken
B: would have taken
C: need have taken
D: must have taken
正确答案是：
同类题型
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