按所给的汉语，用英语完成下列句子。
 在我们搬家到上海的开始两个月我的祖父母不适应生活在城市。
_____________ in the city in the first two months when we moved house to Shanghai.
 其实，体育运动是对脑力劳动者很有价值的。
In fact, sports and games can____________ people who work with their brains .
 种子通常是随风散播的。
Seeds ____________________________________________________________________.
 据报道食用过多的糖常常引起健康问题。
It's reported that eating too much sugar often                                .
 我的确不知道他出国多久了。
I really didn't know ______________________________________________.
 他很难向我解释为什么他又迟到了。
He _______________________________________________why he was late again.