Ответ:
1 Our classes usually begin at 8.30 in the morning.
2 I spent my last weekend well.
3 I think we will travel to the seaside next summer.
4 The pupils isn't having a break now.
5 We never swim in the ocean.
6 We didn't swim in the lake last summer.
7 My friend will swim in the Black Sea next month.
8 We often go swimming.
9 He usually reads books at home.
10 The first lesson has begun just.
11 Look at the boys! They are swimming on such a cold day.
12 Yesterday he bought a book at school.
13 Listen! Nick is reading a book.
14 I think tomorrow he will play tennis.
15 Mum is cooking fish now.
16 She won't skate in the park tomorrow.
17 My mother bought a lot of bananas yesterday.
18 We have just eaten all the bananas.
19 I think she will buy some more bananas tomorrow.
20 Usually my dog drinks milk.
21 My dog is eating meat now.
22 Kate and Ann usually go for a walk together.
23 Yesterday Ann went for a walk with Mary.
24 Look! They are going to us.
25 They haven't invitedus to play with them yet.