问题
选择题
Teachers recommend parents their children under 12 to ride bicycles to school for safety.
A．not allow
B．do not allow
C．mustn’t allow
D．couldn’t allow
答案
答案：A
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Teachers recommend parents their children under 12 to ride bicycles to school for safety.
A．not allow
B．do not allow
C．mustn’t allow
D．couldn’t allow
答案：A