Indefinite relative pronouns

Question 1

Ce dont + object of preposition de

Answer 1

What, that

Question 2

Ce qui + subject

Answer 2

What, that

Question 3

Ce que + direct object

Answer 3

What, that

Question 4

(ce) __ quoi + object of any other preposition

Answer 4

what, that

Question 5

quiconque + subject or object

Answer 5

anyone who, whoever

Question 6

Ce dont il s’agit est inconnu.

Answer 6

What it’s about is unknown.

Question 7

Je sais ce dont il est capable.

Answer 7

I know what he’s capable of.

Question 8

Le sujet dont il s’agit est inconnu.

Answer 8

The topic it’s about is unknown

Question 9

C’est du dentiste dont j’ai peur.

Answer 9

It’s the dentist that I’m afraid of

Question 10

What is the difference between quoi and lequel(le)?

Answer 10

Quoi is the indefinite object of any other preposition and is indefinite: there is no antecedent
Whereas lequel is a RELATIVE pronoun and requires an antecedent

eg
Je ne sais pas à quoi tu penses. vs
J’ai trouvé un stylo avec lequel écrire.

Question 11

When is ce needed?

Answer 11

The indefinite demonstrative pronoun ce is required when a preposition + quoi begins a clause or follows c’est.

Ce à quoi tu penses peut me faire changer d’avis.
C’est ce dans quoi je vivais.