86. Everything has a hard b        .

85. J        is the first month of the year.

84. People are asked to read q         in the reading-room.

83. The s         are used by people for sending and receiving messages.

82. －Bob, you are late again. What's your e         this time?

　 －Er… I couldn't catch the early bus, and…

81. Of all the s        , I like English best.