As its name ________, the Volunteer Farm relies on volunteers to weed, plant and harvest.
Not until he questioned the manager several times ___________ that the engineer-in-chief had gone to an important meeting.
Staff are allowed to take a ten-minute break every two hours to relax, use the bathroom or do ___________ else is necessary.
Every solid object ______ reflect a sound,varying according to the size and nature of the object.
I would be happier if you did more studying while you are free, but you ___________.
The temperature on the inside of the car can be adjusted to suit the driver’s__________ in winter and summer.