On Sundays there were a lot of children playing in the park, ____ parents seated together joking.
The meeting was of _____, and the information he offered at the meeting was_____.
The reason_______ his coming to China was _____ he wanted to study Chinese medicine.
I was really anxious about you. You _______ home without a word.
This book _____ ten units, _______ three main revisions.
His uncle _____ until he was thirty-five.