Thus, a new strain is born and medical detectives must begin again the search for drugs that will work.

"There was a murder in this hotel last night," the detective began.

The detective began to call the rooms in which his men were staying.

He expressed surprise when the detective began to question him.

The detective began to pace up and down the floor.

A clever detective might begin to get me in his sights.

The detective pulled a notebook from his pocket, and began to mark details.

The detectives in the unit were beginning to gather around her.

Then, the detectives begin to take a closer look inside the clannish family.

The detective began silently to go over his brief stock of prayers.