279. The man lay there, _________with a bad pain.
| A．scream | B．giggling | C．screaming | D．Humming |
He jumped at the opportunity when he saw the advertisement in a newspaper，because barely ________ make ends meet.
| A．he could | B．could he |
| C．he couldn't | D．couldn't he |
Every evening after dinner，if not ________ from work，I will spend some time walking my dog.
| A．being tired | B．tiring |
| C．tired | D．to be tired |
—I didn't go to see the doctor yesterday.
—But you ________.
| A．ought | B．ought to |
| C．ought to be | D．ought to have |
I don't mind her criticizing me，but ________ is how she does it that I object to.
| A．it | B．that | C．this | D．which |
It was last night ________ I saw the comet.
| A．the time | B．when | C．that | D．which |