题目内容：

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入适当的词（每空不多于三个词）或使用括号中词语的正确形式填空。

It was a busy day at the grocery store and the old couples were in line behind me with birthday balloons.

They were chatting together about their rush to get ready for the party. From   1.  they said, I knew their nephew had a twin and something bad happened to the baby at birth. Though they did all they could 2.  (help) them but times were still tough for them.

They seemed to be too nervous and were too   3.  (anxiety) to leave, so I asked   4.  they wanted to go ahead of me or not. They didn’t understand what I   5.  (mean) at first. After knowing it, they were very appreciative. But they stood behind me.

At that time I knew it had to be a significant day to them. Nothing could be   6.  (good) if someone offered to help them. So I told the cashier to add the balloons to my purchases. The old couples refused at first   7.  I insisted. I said, “You tell your sweet nephew that there are always nice people who want to give them   8. hand in this world.” They thanked me over and over and the cashier got teary-eyed, 9. (say) there was an angel in her line today.

That little act of 10. (kind) made everyone who saw it feel good—but it made me feel the best of all!