II. Rewrite the sentences below, using the present perfect.
1. They (never eat) …………………. Mexican food.
2. Hoa ( walk)…………… in the rain many times. She loves it.
3. I ( never see) …………….. such a big flower.
4. we ( not visit) ……………….. Nha Trang.
5. I (read) ……………… that novel three times.
6. He ( never meet)……………… her before.
7. The zoo isn’t far from here. I (walk)………. there three times.
8/ Ìf we ( not economise)…………………….on electricity there will be power cuts.
9.I hope he (finish) ……..his homework before we (get)…………………back.
10/ if we sit too far away from the screen I (no be)………….able to see the film.
11/ Listen to those people ! What language they (speak)……………….?
12/ Where you (come) …………………….from in Finland? -I (come) ………….from Helinki. But I (not live) ………………………there since I was ten years old.
13/ Look at the sky!. It (rain) ……………………………………….
14.The olympic Games ( be)………… held once every four years.
15.The first olympic games (take)……….. place in Greece in 776
16.People (start)…………. to use computer about 50 years ago.
17.What ‘s that noise? - The children (play)…………… tug of war.
18.What ………. you (do)………….. last weekend? - I (cycle)……………… round the lake with my friends.. Then I (watch) ………..TV in the afternoon.