A、It moves into a sloping position and has the possibility of collapse. B、Its beautiful scenery welcomes 1 billion tourists on M

The landmark clock tower containing Elizabeth Tower at Britain’s Palace of Westminster, is tilting. It is said the mother of all parliaments was slipping into the River Thames, raising fears over its future. The House of Commons commission, which is responsible for the upkeep of the 19th century neo-Gothic parliamentary estate popular with tourist photographs, was due to meet Monday. Media reports said it would discuss a surveyor’s report which could recommend lawmakers move out for repairs costing up to one billion pounds, while the Daily Telegraph said another proposal might be to sell it to Russian developers for about 500 million pounds($ 779. 7 million). But a commission spokesman said there was no surveyor’s report, and the members were only meeting to discuss setting up a group to look at the general long-term renovation of the grade 1-listed building designed by Charles Barry and Augustus Welby Pugin. "I think there’s been twos and twos added together and come up with we are selling to the Russians, but they won’t be talking about anything like that," the spokesman said. The 96-meter tall clock tower, which houses the bell originally nicknamed Big Ben, leans about 46cm to the left of its peak. A construction expert who worked on the leaning tower of Pisa in Italy and a multi-storey carpark under the houses of parliament in central London, said there was nothing to worry about, and it would take 10 000 years to reach an angle of concern.
16. What happens to Elizabeth Tower according to the passage?
17. What is the content of the commission meeting according to the spokesman?
18. What did the construction expert say about Elizabeth Tower?