Ответ:
1 Bill will take part in the competition in 3 days.
2 The concert took place 4 days ago.
3 He is playing the violin in his room now
4 My granny works in the garden every spring
5 She is in the kinchen
6 She is cooking dinner
7 We were in Moscow last summer.
8 Her mother is at the market now. She wants to buy some fresh fruit.
9 They are not here. They are playing badminton in the yard
10 She hates spiders
11 Mike bought a new computer game yesterday.
12 Ted will phone you next Tuesday
13 I listened to you very attentively but I do not understand anything.
14 He learnt all the grammar rules yesterday.
15 He knew them well today.\
Объяснение: