I think Tom, ________you, is to blame for the broken window.[ ]

Tony answered all the questions ________ the most difficult one.

What’s ______population of China—China has_____ population of 13 billion

______ success the young brilliant scientist has made is admirable.—I think he is ______ success as a scientist indeed.

What a woman! I just wonder how she managed to keep smiling after all that she had ________.