1.
1 My sister sees her boyfriend twice a week.
2 Don't disturb me. I am doing my homework.
3 I like Sam. How long have you known him?
4 I have run all the way to school this morning.
5 A: Where's the ice cream?
B: Sorry. I have just finished it!
6 She has taken up the piano recently. She loves it.
7 Jay wasn't there when I called. He has already left.
8 Kevin arrived while we were having lunch.
9 After seeing the film, he bought the DVD.
10 I was watching TV when I heard a bang.
2.
1 We haven't been to the cinema since last December.
2 I have lived for ten years.
3 Jeremy has worn glasses for several years.
4 My cousin has had his driving license since 2005.
5 She has sent ten text messages since she woke up.
6 My dog hasn't eaten anything for three days.
7 He has known Emma for six months.