3. Little children require constant supervision. This means that adults must
(A) give them lots of freedom.
(B) watch and direct them.
(C) give them art supplies.
(D) teach them to read.
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統計: A(50), B(295), C(20), D(14), E(0) #1998893
統計: A(50), B(295), C(20), D(14), E(0) #1998893