Mary clapped her hand over her mouth_______ she realized what she had said.

The woman, when _______ how her husband was injured, began to cry [ ]

－How was the journey－Tiring! I caught the train at the last second but all the seats _____. I stood all the way.

Did you _______ to New York City with your mother–No, I _______ there with my friends.

Zhao Benshan，whose overwork ________ his health failure，is said to have performed in．the Spring Festival Gala on CCTV in 2011