问题
It is often recommended that children________chances to get close to nature.[ ]
A: are offered
B: be oIMG style="WIDTH: 1px; HEIGHT: 1px; VERTI
C: should offer
D: must be offered
B: be oIMG style="WIDTH: 1px; HEIGHT: 1px; VERTI
C: should offer
D: must be offered
正确答案是: