He had decided to give it up , but on____ second thoughts he decided to try___third time.
As equipment improved, satellites began __________ scientists __________ weather maps of the entire globe.
Asthe story __________,the truth about thestrange figure is slowly discovered.
—Did you go to India as planned? —No, we __________.
Don't __________ making mistakes. They are a naturalpart of learning.
All the、doctors in the hospital insisted that he __________ badly wounded and that he __________ at once.