When you go by train, please see to it_______ you take an express, _______ that stops only at big stations.
A. that, one B. /, the one C. that, it D. /, it
When you go by train, please see to it_______ you take an express, _______ that stops only at big stations.
A. that, one B. /, the one C. that, it D. /, it
A
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