Rainforests __________ and burned at such a speed that they will disappear from the earth in the near future.
Our English teacher often tells us that the meaning of a new word may be ________ according to the given context.
—Do you believe that opportunities always ________ the prepared minds?—I couldn't agree more.
Mr. Smith got a ticket on his way home because he had failed to ________ at a red light.
—Do you know why Lisa cried in class?—I don't know and I don't ________.
Many teens don't get enough sleep because they have too much homework to do, which ________ them up at night.