Keep it in mind not to disturb the president at two o’clock this afternoon, when he ____ a global joint meeting

3.Once one’s desire ______ reason, trouble is sure to follow.

I think Helen is at home.—No, shebe at home, for she phoned me from the airport just five minutes ago.

We won’t keep winning games _______ we keep playing well.

Both the children ______ good at maths.