Ответ:

1.He asked a lot of questions yesterday.

2.Julia ran in the yard half an hour ago.

3.Andrew brought a toy 10 minutes ago.

4.It snowed last week.

5.They traveled to Australia last summer.

6.My cousin read this book a month ago.

7.We bought some bread yesterday.

8.She helped hermum last Friday.

9.You sang very well yesterday.

10.Her dog walked in the park an hour ago.