问题
选择题
_______ it be true that the road is being blocked at this moment, for cars are moving like snails inch by inch
A．may
B．should
C．can
D．must
答案
答案：C
“现在道路被堵塞了，是真的吗？因为车像蜗牛一样慢慢地爬”can用于疑问句表示猜测。所以答案C。
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