Present perfect
fill in the gaps in the sentences below.
2.Scotland and England .............. united for over a century.(be)
3. Tourists .................... the Highlands for over a century.(visit)
4. The rail bridge .............................. trains to the Highlands for more then 100 years.(carry)
5. The volcano called King Arthur` s Seat ...................... dead for a long time.(be)
7. The Scots .................... tartan for hundreds of years. (wear)