A professor said the rise of the BRICS countries(金砖国家) is a/an _______ of the end of the world in the control of the USA.A. barrier B. process C. aspect D. symptom
Knowing their son failed in the exam, the parents stood there, ________.
Everyone was silent as the organizer ________ the result of the speech competition.
After a few courses on painting, Helen said she would ________ oil painting in her spare time.
Most people are familiar with the idea that all matter in the universe ________ atoms.
________, Nathan gave back the enormous amount of money he found.