She now has to return home to have a long-time rest at her young age, because her health _____ under the great pressure of work.
---I’m afraid that Mr. Wood can’t see you until 4 o’clock. ---Oh, ______ I won’t wait.
. Little ______ about her own safety, though she was in great danger herself.
______ to reach them on the phone, we sent an email instead.
Our bodies are strengthened by taking exercise. ______, our minds are developed by learning.
American Indians ______ about five percent of the U.S. population.