Cable TV began in 1948 in the USA, but it took 50 years________ 66 percent of American households had it.
A. before B. after C unless D. since
Shelly had prepared carefully for her biology examination so that she could be sure of passing it at her first _____.
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The young mother saw her baby fall to the ground, _____ brought her heart to her mouth.
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I’m sorry to say that I can’t imagine such a gentleman _____ be so rude to a lady.
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--- Did you go to London for vacation?
--- I _____ to go, but I got sick at the last minutes.
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Higher temperature turning large ice sheet to water would cause _____ rise in sea levels worldwide and change _____ weather on earth.
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