Question

Please Help With These two

________ des deux garçons est ton frère?

lequel
auxquels
auquel
desquels

Le prof ______ je parle est sympa.

lequel
auxquels
auquel
desquels

Answer 1

English and French have the same structure here.
In these sentences, would you use:

which (singular)
to which (plural)
to which (singular)
from which (plural)

Answer 2

so would the first one be lequel and the second one auquel?

Answer 3

@Vincent-Lyon.Fr

Answer 4

Perfect :))

Answer 5

thank you :)