填入下面文段空白处的词语，最恰当的一组是（ ）。小说家应尽可能把人物对话写的流利自然，①生动活泼，②不能完全像实际说话。③讲故事或作报告，④又决不能像日常说话那样支离破碎，⑤不写稿子， ⑥ 应像一篇文章。 ①②③④⑤⑥

This is the very diamond ring________I have been looking for in the past months.[ ]

my wife prefers _______ yoga ____ a good figure.

That such a great number of families are still so badly off greatly ______ the researchers.

Why are your hands that dirty— Oh, I______ in the garden since we finished breakfast.