Question

10 The tallest building in the world
1) Read about Burj Khalifa. Complete the questions with the correct question words.
1. Where_ is Burj Khalifa?'
'In Dubai'
2. ＿ did it open?
'In January 2010'
3. ＿ high is it?"
828 metres.
4. ＿ floors are there?'
160.
5.____ did it cost to build?"
US $1.5 billion.
6. ＿ does it take to clean all
the windows?'
Four months'

Answer 1

тут все легко нужно подставлять нужные слова-предлоги