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