The rise and fall of the sea is __________ by the movements of the moon.
___________________ to sunlight for too much time will do harm to one’s skin.
With her health ____________________, she had to quit the job she loved. A. broken down B. broke downC. having broken down D to break down
She is popular among her classmates, ________________ she can be annoying at times.
— Margaret _____________ stay at home all day long in front of the computer. —That' s right.She should go to the fitness center with us.
The flood this summer caused serious _______________ to the crops in Northeast China.