85.The abacus 　　　　　　　in the sixth century by Chinese people .(invent)

84.- How do you study for an English test?

-.I study by 　　　　　　lots of phrases and reading the important sentences.(write)

83.My teacher spoke 　　　　　　　of Hai Long.(high)

82.When I heard the funny story , I couldn’t help　　 　　　　　.(laugh)

80.Please end up　　　　　　　 , I can’t wait for you ,I have many things to do.(shop)

81 I was busy　　　　　　　 my English book.( read )

79.Han Mei used 　　　　　　　her mother do housework. when she was young.(help)

78.The scoop is used for 　　　　　　　　　something.(scoop)

77. There are many 　　　　　　　in the Palace Museum. (visit )

76. I think 　　　　　　　in bed is bad for your eyes.( read )

75.Mr Smith , would you please speak　 　　　　　　　? I can’t catch up with you .(slow)