__about 3:00am____July 28,1976,some people saw bright lights in the sky.
Thanks to the vivid ______, the speaker made the abstract concept accessible to all the audience.
---Were you satisfied with the exam result? ---Not a ______. I should have done much ______.
The police set about arresting the suspect ______ they found enough evidence to prove him guilty.
Flu is a very ______ infectious disease. Fever, headaches, coughing and fatigue are some of its ______ symptoms.
After being elected ______ President of ________ United States, Barack Obama moved with his family into ________ White House.