Suzhou is famous _______its beautiful gardens and this garden is know _____one of the best.
______ Lily ______ Lucy may go with you because one of them must stay at home.
—Have you ever heard of Langlang? —Sure. He is one of ______ pianists ______ I have even seen.
—Have you heard of the Big Ben? —Of course. It a symbol of UK.
—Please say something about Zheng He. —Oh! He is the Ming dynasty explorer of ______ all the Chinese are proud.
—Where is North Korea? —It lies ______ the northeast of China.