Cable TV began in 1948 in the USA, but it took 50 years ________ 66 percent of American households had it.
The______ look on his face suggested that he had passed the exam.
As a boy, he was_______ hard all day long.
Many things _______ impossible in the past are common today.
I rushed there in a taxi only _______ the library_______.
You can close your umbrella. The rain seems _______.