唐太宗曾说：“君，舟也；民，水也。水能载舟，亦能覆舟。”他在位期间，推行均田制和租庸调制，保证农民的土地和时间，促进了社会发展。唐太宗的执行措施实质体现了[ ]

A．道家的“自然无为”

B．儒家的“仁政德治”

C．墨家的“兼爱非攻”

D．法家的“以法治国”

— Were you surprised by the ending of the film?

— No, I _______the book, so I already knew the story? [ ]

A. was reading

B. had read

C. am reading

D. have read