Ответ:

1 prefers -Present Simple

Who prefers going sightseeing around the city?

2 were watching- Past Continuous

When were your friends watching a documentary about ancient Kyiv?

3 found- Past Simple

Where did we find accommodation 2 days ago?

4 has already tried -Present Perfect

What kind of sport has Vadym tried down the Cheremosh?

Where has Vadym tried water rafting?

5 had returned -Past Perfect

When had they returned from the excursion?

6 have been preparing- Present Perfect Continuous

What have you been doing for 5 hours?

7 is surfing- Present Continuous

Why is Diana surfing the net now?

8 am spending- Present Continuous или will spend- Future Simple

How many days are you spending in Odessa next month?

How many days will you spend in Odessa next month?

Объяснение: