He was busy writing a story, only ____ once in a while to smoke a cigarette. A. to stop B stopping C to have stopped D having stopped
In front of the temple _____ which came here to be in search of the wanted person .
She____much younger than she really is.
He used to ____his teaching when he was young.
The guard____old man to pass after he showed him the pass.
—What about _____concert? —Coco Lee’s concert? To be honest, to buy ____ticket of hers is out of the question at the moment.