根据句意及提示写单词。 1. My parents are celebrating 30 years of their m_____. 2. Beijing is the c_____ center of China. 3. The elephant waved to us with their t_____ and ears. 4. Wish you _____ (成功). 5. Let's _____ (讨论) how to work out the Maths problem. 6. —How many _____ (表演者) are there ion the show? — I'm not sure. |