91.   An investigation has been opened into the scandal.

92.   An investigation was opened into the accident.

93.   An investigation was opened into the cause of the collision.

94.   An investigation was opened into the cause.

95.   An official investigation was opened into the cause of the blaze.

96.   An investigation has been opened into how the passenger had been able to carry a knife with him and why stricter medical supervision had not been provided.

97.   An investigation was opened into the cause of the crash.

98.   An investigation was opened into the causes of the accident, TAP reported.

99.   Deputy Prime Minister Bulent Ecevit told reporters Tuesday that an investigation had been opened into the claims.

100.   Internet Options sets my default at Microsoft Outlook, so Inbox opens into Exchange, which opens into Outlook.