South Korean rapper Psy’s hit song “Gangnam Style” made_______history on Dec. 20th as _______first ever video on YouTube to reach 1 billion views.
Mr. Wang has made up his mind to devote all he could ______his oral English before going abroad.
Tom had no choice but to ________ an excuse to explain his being late.
--Go and ask Mr. White for help. --But I don’t know _____________.
--Jane, are you and your sister on a diet now? -- Yes, I want to lose some weight, and ______.
There is hard evidence ________ the accident was caused by his careless driving.