I can't distinguish one twin (a)   the other. They look so alike!

Martin is known (a)   his kindness to the poor.

I don't agree (a)   the way he disciplined the boy.

I'm worried (a)   his health. He has been coughing incessantly.

The famous actor consented (a)   giving an interview on the radio.

I admire my grandparents (a)   their persistence in finding ways to take care of the family during the war.

The new student was shy and kept (a)   himself.

All the players have to abide (a)   the referee's decision.

Jack insisted (a)   his way and refused to take anyone else's advice.

The worker was hospitalised and treated (a)   exhaustion.

To deter students (a)   running across the road, a traffic warden is stationed outside the school gate at dismissal time.

The airport was crowded with people and I had to jostle my way (a)   the crowd.

I did not have the heart to turn (a)   her offer of bringing me around the city although I wanted to explore the place on my own.

Strangely, the canteen was devoid (a)   people even though it was recess time.