Either you or one of your students ________ to attend the meeting that is due tomorrow.
A．are B．is C．have D．be
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
