87. One reason for this is that most ______ (传统) film festivals show films from a variety of countries.
86. The Louvre Museum has more than 6,000 other European paintings, ______ (从……到……) from the 13th century to the 19th century.
85. There is a t______ in the plot when a very generous stranger gives Pip a lot of money.
84. He made a lot of scientific discoveries that he shared with the world, p ______ in the field of astronomy.
83. Please tell me how to d______ a poisonous snake from a harmless snake.
82. The government issued a statement c______ the bombing which killed hundreds of innocent citizens.
81. There are many wild animals in the forests and on the freezing, ice-covered lands in the north, and fish are a______ in the seas and rivers.