What worried the child most was _________ to visit his mother in the hospital.
In the past ten years, the ________mountain climber _________ a lot from his own adventurous _______
To avoid on how to use the word, you’d better refer to a dictionary.
Listen! Do you hear someone _________ for help?
He prefers _____books at home rather than ______TV.
—Will $ 2,000 _______ the cost of the trip? —I’m afraid not. Perhaps I need another $500.