7. The computer system()suddenly while he was searching for information on the Internet.

81、The manager will not _________ us to use his car.

80、Jane’s dress is similar in design ______ her sister’s.

79、Once environmental damage ______, it takes many years for the system to recover.

78、____ you know, David has been well lately.

77、The young lady coming over to us _____ our English teacher; the way she walks tells us that!

76、____ she survived the accident is miracle.

75、She wonders ____will happen to her private life in the future.

74、His mother _____alone since his father died.

73、I often see ______ the road on his way home.

72、Sunday is the day ____ people usually don’t go to work.