Unfortunately, when I dropped in, Doctor Li _____ for Beijing to join in the fight again SARS, so we only had time for a few words.
55. All ____ not baked in one oven. (prov.)
56. He said under his breath that he would keep the secret. The underlined part means _____.
57. The rain was coming down in buckets. This sentence means ____ .
58. The little boy has learned many Tang dynasty poems _____ though he is very young.
59. Sorry, I took your pen _____.