Use past simple or present perfect to complete the sentences.1

Use past simple or present perfect to complete the sentences.
1 The concert (just begin) has just begun.
2 Sam (phone) ____ just now.
3 The boys were so hungry. They (eat) ___ all the sandwiches and (ask) ___ for more.
4 Our children (already become) ___ grown-ups.
5 The fridge is empty. I can see that Bob (not be) ____ to the shops.
6 The other day we (write) ____ to them, but we (not receive) ____ any answer so far.
7 Alex, what present (you choose) ____ for daddy?
8 Simon (not get) ____ any bad marks recently. His teacher says the boy (change) ____ a lot.
9 Last Tuesday they (drive) ____ to Oxford in their Ford. The journey (not be) ___ long at all. It (take) ____
them about two hours and a half.
10 Its the second time I (ride) ____ a horse.