We’re trying to ring you back, Bryan, but we think we ________your number incorrectly
more and more forests destroyed, some animals are in danger of dying out.
It is believed that diligence(勤奋) along with good luck ______ one’s dream.
—I do believe the scientific explanation that when a tomb is opened, the fresh air disturbs the viruses inside it. What about you? —So do I. If _______ in, the disturbed viruses may cause illness or even death.
Our bodies are strengthened by taking exercise. ______, our minds are developed by learning.
It took several hundred years ______ paper-making spread to western countries.