But if a treatment ________ delayed the disease by seven years were to be available, the number of sufferers would drop by 40% by the middle of the century.
It is impossible to cooperate with a person ________ methods are completely opposed to your own.
Butterflies ________ a sweet liquid produced by flowers, which bees and other insects collect.
The girl in the photo was smiling sweetly, ________.
Electronic products are ________ must for new generation of ________ college students.
—Are you finishing your task? —________. We need no less than three hours more.