根据图片提示．填入恰当的短语完成句子.

1. That boy usually__________ at eight o'clock.

2. What time does your brother__________?

3. Does your uncle often__________ in the evening?

4. My sister usually __________ at seven o'clock in the morning.  

5. Bill's cousin usually__________ at three thirty in the afternoon.

为了防止婴儿发生缺铁性贫血，在其 4～6个月时，开始添加含铁丰富的食物，蛋黄并非是最好的选择，这是因为其中含有干扰铁吸收的物质，这种物质是

A．抗胰蛋白酶因子
B．抗生物素
C．胆固醇
D．卵黄高磷蛋白
E．磷脂