, но если не знаете или не уверены то не делайте

1. Tom's very good at martial arts. He has won a lot of competitions.

Present perfect simple - он уже выиграл множество соревнований, действие завершенное.

2. Where's the bus? We have been standing here for ages.

Present perfect continuous - событие всё ещё продолжается, они до сих пор ждут автобус.

3. I'll show you my drawing later. I haven't finished it yet.

Present perfect simple.

4. The homework is taking us ages. We have been doing it since lunch.

Present perfect continuous.

5. Where's my watch? Someone has taken it.

Present perfect simple.