对下列句子中画线的“其”的分类，正确的一组是（ ）①其后四年，而归视汝②止一岁，请归取其孥③如吾之衰者，其能久存乎④吾兄之盛德而夭其嗣乎⑤敛不凭其棺，窆不临其穴⑥自今已往，吾其无意于人世矣⑦教吾子与汝子，幸其成

What color is the ruler — ________.

–Do you think that we should make preparations forthe competition in advance -–Exactly ______

By improving reading skills, you can read faster and understand more of______you read．

ife often provides us more convenience andentertainment than country life, but not ______quiet and easy.