The vocabulary and grammatical differences between British and American English are so few and unimportant as hardly______.
| A．noticed | B．to notice | C．being noticed | D．to be noticed |
56. He said under his breath that he would keep the secret. The underlined part means _____.
| A．loudly | B．shyly | C．politely | D．in a low voice |
57. The rain was coming down in buckets. This sentence means ____ .
| A．The rain was coming down into the buckets. | B．The rain was very heavy. |
| C．There was some rain in the buckets. | D．There were some buckets in the rain. |
58. The little boy has learned many Tang dynasty poems _____ though he is very young.
| A．by heart | B．by mind | C．by the way | D．by book |
59. Sorry, I took your pen _____.
| A．by heart | B．by mistake | C．on purpose | D．by the way |
60. Which of the following group all belongs to the same category (范畴)? _____
| A．cabbage, carrot, tomato | B．cabbage, peanut, apple |
| C．cabbage, cucumber, pear | D．carrot, tomato, pineapple |