Complete the sentences with the verbs in the Past Simple or the Present Perfect.
1. ... you (be) to London? - Yes,I ... (be) there last summer.
2.She ... (never/fly) a kite.
3.The tourist ... (just/cross) the square.
4.They ... (cross) the street, ... (turn) to the left, and ... (see) the boat.
5.We are very tried. We ... (just/clean) the house.
6.The students ... (visit) the Science Museum yesterday. They ... (spend) Science Night int the museum.