55. Traffic jams often ______ problems that are difficult to solve.

85. This is made of glass. It costs 100 Yuan at (the) most.

84. Can you provide any evidence to show that he was not in the crime scene at that time?

83. We were impressed by his straightforward answers.

82. David studied each photo twice and read the captions carefully.

81. We’ve just come across an old friend we haven’t seen for ages.

80. We should beware of cultural differences in doing foreign trade.

79. He volunteered to serve as the driver of our team.

78. Such sweet words might please you. But they don’t work for me.

77. In her hands, a piece of common paper could be cut out into various kinds of flowers.

76. He has good team spirit, being able to work with any type of people.