6、One day, I was cooking in the kitchen as the

76. when

telephone rings. I went to answer it immediately.

77. rang 

She was my close friend, Lisa. When we were talking

78. It   

on a phone, the fire alarm sounded. I ran back to the

79. the  

kitchen. The roomfull of smoke and the beef was badly

80. was 

burnt. I quickly turned off the gas, opening all the

81. opened

windows, and then went out of the house. In my

82. To   

surprise, two fire engines were outside my house. I

83. √   

was rather worried. I told about the firemen that it

84. about 

was my careless cooking which caused the heavy smoke.          

85. that