Question

Put the verbs in brackets into the present perfect or present perfect progressive.
1) You ... (clean) the house for hours. Why don't you have a rest?
2) It's the most beautiful garden we ... (ever/see).
3) I ... (wait) for you since 10 o'clock this morning. Where ... (you/be)?
4) How long ... (Sam/study) Science?

Answer 1

You have been cleaning the house for hours. Why don't you have a rest?
It's the most beautiful garden we have ever seen.
I have been waiting for you since 10 o'clock this morning. Where have you been?
How long has Sam been studying Science?

Answer 2

1. have been cleaning
2. have ever seen
3. have been waiting // Where have you been?
4. How long has Sam studied Science? ( Present Perfect )
(How long has been Sam studying Science - Present Perfect Progressive )