the waiter understood that he didn't want tea.这句中的that可以省略吗?为什么?像这种先行词在什么时候可以省略? 谢谢各位啦!

waiter Ask the waiter to take our order what( )the woman( she is a waiter. The waiter showed me to my s____. The waiter d_____ the plates and broke them填什么 英语翻译the waiter need to take the hamburgers to me. The waiter's tip is included in the bill. The young man once worked there ___a waiter.详解。 The waiter()me an ltalian dictionary.(lent/borrowed) Soon the waiter ____ all their food to them. Waiter,please___away the tea and ___me a cup of coffee. 改错Soon,the waiter took me a cup of coffee. The waiter is watching TV.(改一般疑问句） the waiter b____ them a big plate of food the waiter take my oder为什么用take部用takes The waiter sounded ______ to me A.friendly B.ugly The man in the restaurant called the head waiter in to complain ____ the food. The man in the restaurant called the head waiter in to complain ____ the food