2. understood

3. Yes, an interrogative sentence can use a singular verb too.

• Who (still) remembers the guy who improved your English? (Correct)
  
• Who (still) remember the guy who improved your English? (Correct)
• Which one of you (still) remembers the guy who improved your English? (Correct)
• Which one of you (still) remember the guy who improved your English? (Incorrect)
• Which ones of you (still) remember the guy who improved your English? (Correct)
• Which ones of you (still) remembers the guy who improved your English? (Incorrect)
• Which one, between Rani and Rini, has passed the exam?
• Which one, between Rani and Rini, have passed the exam? (Incorrect)
• Who is he?
• Who are he? (Incorrect)
• What is he doing?
• What are he doing? (Incorrect)

Thank’s That’s really helpfull!
But hey! Could the interogative sentence be added using singular verb? The word that i spotted is “remembers” above. Hehe

Ok, Sir.. Thank you here and after. hope you are doing ok as always

Regarding your two sentences, both sound odd to me. What about:

1. Who (still) remembers the guy who improved your English? Or, Which one of you (still) remembers the guy who improved your English?
2. Which one, between Rani and Rini, has passed the exam?

And for the last, Here i still get a bit confuse from the sentence bellow,

“Which of you remember the guy who improved you english?”

After which, it is followed by preposition(of) and noun(you), right?. what confuses me is.. Saya terganggu dengan acuan diatas yg menyebutkan WHICH TIDAK BISA DIPAKAI UNTUK MENGGANTIKAN ORANG, Apakah noun (you) disitu,dibentuk dri preposition (of) yg didepanya!? sehinnga menyebabakn kalimat itu mengandung noun?
Apakah bisa setelah ‘which’ langsung diikuti ‘you’?

Apakah kalimat ini benar :

Which betwen Rani and Rini has passed the exam? — Yang mana, antara Rani dan Rini yg telah lulus ujian?

Really sorry for the very late reply, but first of all, I think your first example should be:

1. The match which had been won by Juventus made me happy.

In order to see the main difference between the two more clearly, let’s omit the adjective clauses from both sentences first.

1. The match made me happy.
2. The match makes me happy.

So, the first sentence is expressed in the simple past tense, while the second one is in the simple present tense. As discussed on the Simple Present vs Past Tense, the former tells us that you were happy and the happiness was caused by the match. It expresses a cause of your happiness that happened and ended in the past. The latter, on the other hand, tells us that the match made you happy, the match still makes you happy now, and probably tomorrow and so on, you’ll still be happy because of the same match.

Similar case to their adjective clauses- “which had been won by Juventus” vs “which Juventus won” = “yang telah dimenangkan oleh Juventus” vs “yang Juventus menangkan“. They’re different not because they are a passive and active voice, but because they are in different tenses, namely past perfect vs past tense.

And, for the second question, I would say, yes, to be, such as, is, am, are, was, were, be, been, can also be a verb. They belong to a verb group termed linking or copulative verbs. (Please see: Adjectives part 1 and Predicate adjectives and nominatives.

1. “The match which have been won by juventus made me happy”
2. “the match which juventus won makes me happy”
What is the differences between the two sentences?

And here’s the other question :
“The book which is on the table is mine.”
Just by guessing,it follows the pattern of “WHICH + VERB + …” But my question is actually about, where is the VERB if the sentence above follows the pattern WHICH + VERB + … . ?
Could to-be be named as Verb?
If it so, would u like to show me its link!? I havent read it yet!

Thank you,sir!

A passive adjective clause is basically similar to a passive sentence. The difference of the two is that in an adjective clause, the subject is replaced by a relative pronoun (e.g. which, that, who, etc).

In your example sentence, you can either add IS after the relative pronoun WHICH or omit the relative pronoun. In the latter case, to be is not needed.

XXX provides basic knowledge of Social Science WHICH IS complemented with interesting displays and features, as well.

OR

XXX provides basic knowledge of Social Science complemented with interesting displays and features, as well.

Sebenernya saya selalu mencari jawaban sendiri di google sblm bertanya, tp saya tidak yakin dgn penjelasannya.

Thanks a lot, Sir.