ex. 3 Choose Present Perfect or Past Simple
I _____ (visit) Bob last month.
We _____ (promise) to help them already.
She _____ (never/do) anything bad.
She _____ (go) on holiday three weeks ago.
We _____ (not/do) our work yet.
She _____ (see) the film three times.
They _____ (swim) in the sea last summer.

ex. 4 Choose Present Perfect or Past Simple
1) You _____ (not / to have) enough to eat yet. You _____ (to eat) more yesterday.
2) Why _____ (not / you / to tidy) up your room yet? It _____ (to look) really nice last week.
3) Sarah _____ (to go) for a walk with her dog an hour ago. She _____ (not / to come) back yet.
4) I _____ (not / to see) Jean today, but I _____ (to see) her yesterday.
5) Yes, I _____ (to be) to the Lake District before. I _____ (to go) there three years ago.
6) _____ (you / to see) Peter? He _____ (to want) to walk home with me.
7) _____ (you / to see) that man on the motorbike yesterday? I _____ (never / to see) such a dangerous driver.
8) How long do you think we will have to wait? We _____ (to be) here since 2 o'clock.
9) _____ (she / not / to know) who you were any more? I _____ (never / to hear) anything like it before.
10) I _____ (not / to know) you had a new car. How long _____ (you / to have) it for?

I visited Bob last month.We have promised to help them already.She has never done anything bad.She wenr on holiday three weeks ago.We haven't done our work yet.She has seen the film three times.They swam in the sea last summer.1) You haven't had enough to eat yet. You ate more yesterday.2) Why haven't you tidied up your room yet? It looked really nice last week.3) Sarah went for a walk with her dog an hour ago. She hasn't come back yet.4) I haven't seen Jean today, but I saw her yesterday.5) Yes, I have to the Lake District before. I went there three years ago.6) Have you seen Peter? He wanted to walk home with me.7) Did you see that man on the motorbike yesterday? I have never seen such a dangerous driver.8) How long do you think we will have to wait? We have been here since 2 o'clock.9) Didn't she know who you were any more? I have never heard anything like it before.10) I didn't know you had a new car. How long have you had it for?