She insisted ___ paying the bill.

He succeeded ___ finishing the project on time.

They complained ___ waiting too long.

He is thinking ___ going to the park later.

He apologized ___ being rude yesterday.

She specializes ___ teaching young children.

He congratulated me ___ passing the exam.

We’re looking forward ___ meeting you soon.

He’s afraid ___ making a mistake.

He feels guilty ___ not helping his friend.

They’re proud ___ winning the competition.

They succeeded ___ convincing everyone to join.