What will the world use for power when it________ oil?
Not only I but also Jane and Mary __________ tired of doing the same thing all the time.
Either you or one of your students __________ to attend the meeting that is due tomorrow
Healthy eating as well as regular exercise __________ a good way to keep healthy.
There was __________ apples in the basket and there __________ quantities of milk in the bucket.
As a result of destroying the forests, a large __________ of desert __________ covered the land.