55. The student said there were a few points in the essay he ( ) impossible to comprehend.

56.Which of the following sentences is INCORRECT? ( )

55.Which of the following sentences expresses WILLINGNESS? ( )

54.My boss ordered that the legal documents ( ) to him before lunch.

53.Which of the following reflexive pronouns(反身代词)is used as an appositive(同位语)?( )

52.Which of the following determiners(限定词)can be placed before both singular count nouns and plural count nouns? ( )

51.Which of the following sentences is INCORRECT? ( )

80. She must have been pretty ( ) to fall for such an old trick.

79. The girl’s voice was so low that we could ( ) hear her.

78. His plan is carefully prepared and full of details, so it is a very ( ) one.

77. Everyone is surprised that she has fallen out with her boy friend. The underlined part means ( ).