The host was quite annoyed when he found out that his things on the bookshelves had been ________．
A.troubledB.interruptedC.disturbedD.upset在线课程C
trouble“(使)麻烦”；interrupt“打断”；disturb“弄乱”；upset叙述物时，意为“弄翻”；叙述人时，表示“(使)心烦”。