Sure, I'll help you with that. Here are the correct forms of the verbs in brackets, along with the indicators for past simple and present perfect.

1. I **have had** (have) this shirt for nearly four years. *(Indicator: "for nearly four years" - Present Perfect)*
2. Sandra already **tidied** (tidy) her table, but now it is a mess again. *(Indicator: "already" - Past Simple)*
3. Morgana **has lost** (lose) her key. She can’t find it anywhere. *(Indicator: "can’t find it" - Present Perfect)*
4. Bon **has been** (be) to Ha Long five times so far. He loves the place. *(Indicator: "so far" - Present Perfect)*
5. Of course I can ride a car. But I **didn't ride** (not/ride) one for years. *(Indicator: "for years" - Past Simple)*
6. We don’t know Janna’s husband. We **have never met** (never/meet) him. *(Indicator: "never" - Present Perfect)*
7. Rona **has just left** (just leave) a message for you. She **rang** (ring) last night. *(Indicator: "just" - Present Perfect, "last night" - Past Simple)*
8. Your bike looks very clean. **Did you wash** (you/wash) it? *(Indicator: "looks very clean" - Past Simple)*
9. They **moved** (move) here in 2000. They **have been** (be) here a long time now. *(Indicator: "in 2000" - Past Simple, "a long time now" - Present Perfect)*
10. Is this the first time you **have cooked** (cook) spaghetti? *(Indicator: "first time" - Present Perfect)*
11. We **have worked** (work) for a bank since we **graduated** (graduate) from university. *(Indicator: "since" - Present Perfect, "graduated" - Past Simple)*
12. We **posted** (post) the parcel three weeks ago. Have you **received** (receive) it yet? *(Indicator: "three weeks ago" - Past Simple, "yet" - Present Perfect)*
13. My grandmother **died** (die) 7 years ago. I **have never met** (never/meet) her. *(Indicator: "7 years ago" - Past Simple, "never" - Present Perfect)*
14. We **have studied** (study) English for 3 years. *(Indicator: "for 3 years" - Present Perfect)*
15. I **have read** (read) that book several times before. *(Indicator: "several times before" - Present Perfect)*
16. They **have studied** (study) almost every lesson in that textbook so far. *(Indicator: "so far" - Present Perfect)*
17. My son and I **traveled** (travel) to Hong Kong last week. *(Indicator: "last week" - Past Simple)*
18. Janna **was** (be) so happy when she **heard** (hear) the news that she **cried** (cry). *(Indicator: "when" - Past Simple)*
19. They **have just cleaned** (just clean) the bike. It looks new again. *(Indicator: "just" - Present Perfect)*
20. Lili **bought** (buy) a new house in 2013. *(Indicator: "in 2013" - Past Simple)*

I hope this helps!