1. It's forbidden to swim in the lake - You can't/mustn't swim in the lake.
2.Is it OK to use your insect repellent? - Can or Could I use your insect repellent?
3.It's possible to see alligators there - You can see alligators there.
4.We are allowed to put up our tent here - We can put up our tent here.
5.Alligators aren't able to move fast in circles - Alligators can't move fast in circles.
6.It's possible that you will get lost there - You can get lost there.
1 I don't think she will agree to help us as she knows all the details of the plan.
2 I hope he won't recognize me if I wear a wig.
3 I'm sure there will be a heated discussion after students see the film.
4 When you apologize to her you will feel much better.
5 I don't know when Mrs.Smith will recover.
6 I'll lay the table while you dress for the party.
7 I'm not sure if this time will be convenient for him.
8 I will not continue the conversation unless you calm down.
1) Whom has Melissa just fed? - Present Perfect
2) Where have I (можно заменить на местоимение you) been (yet)? (обычно слово <u><em>already</em></u> в вопросительных и отрицательных предложениях заменяется на слово <em><u>yet,</u></em> но в последнее время все чаще <u><em>already</em> </u>встречается и в вопросах, поэтому выбор сделайтесами) - Present Perfect
3) What haven't the scientists finished yet? - Present Perfect
4) Who has got several animals at home? - Present Perfect
5) Why did Alex and Jim watch these little ones? - Past Simple