81.   The physicist did his best to explicate the wave theory of light for the audience of laymen.

82.   He did his best to help them.

83.   We do our best to reinforce good conduct in the classroom.

84.   During the talks Shar indicated that the Syrian government would do its best to secure the release of British hostages held in Lebanon.

85.   Saddam certainly has done his best to milk the whole occasion.

86.   Nora looked up to see John doing his best to hide a smile of triumph.

87.   I was afraid of infection spreading amongst them, but we did our best and packed them in.

88.   I feel I have done my best to communicate at every stage.

89.   The weather did its best for us, not a drop of rain and four days of glorious cycling in unspoiled countryside, small villages and quiet roads.

90.   The mouth did its best to become a wry smile.