91.   The obligation will usually last only for as long as the information retains the necessary quality of confidence.

92.   Typically la last for one week?

93.   The silence between them seemed to last for eternity, and the longer it lasted, the harder it seemed to find something to say.

94.   If only this day could last for the rest of her life.

95.   This joint operation will last for a year.

96.   The trial is expected to last for two weeks.

97.   The case will resume tomorrow and is expected to last for at least two weeks.

98.   The hearing is expected to last for three days.

99.   The truce will start on Sunday and last for two weeks.