Jake couldn't think of a single argument in his own defense.

She could not think of an argument fast enough.

He appeared impatient to continue, but unable to think of a good argument.

Stone couldn't think of an argument to use, although he knew that Libertad must be wrong.

Quickly, the reporter tried to think of a new argument.

But I can also think of an argument against my own claim for parasites.

"I can't think of a single argument that would be useful or necessary," Jerome said.

He wanted to induce her to remain, but couldn't think of a good argument.

No one could think of an argument to that.

Besides, I couldn't think of a good argument to it.