1.  A bad leader, on the other hand, undermines your efforts in subtle ways.

2.  A big effort was mounted against airfields, radars and anti-aircraft batteries in an attempt to gain air superiority.

3.  A computer program that attempts to have a robot duplicate your efforts would get very complex.

4.  A deluge of medals somehow makes the effort look more meaningful, no matter how little valor accompanies it.

5.  A few agencies reported that their efforts were under way.

6.  A global concerted effort is required to avert a global health crisis.

7.  A great deal of effort, therefore, still goes into trying to put the human intelligence back into the switches.

8.  A long-range effort from Eyjolfur Sverrisson was parried by Lukic and Walter demonstrated his predatory instincts ruthlessly inside the box.