SQL : Multiple left joins with similar tables

I have the following tables:

TABLE A
id
info

TABLE B
f_id
question
choices

TABLE C
f_id
question
lines

The id from the Table A always match a f_id from either Table B or C, but never both. I want to join Table B and Table C on table A only when it matches so I would get a table with the following columns :

id | info | question | choices | lines

where all rows are filled in the question column, some are NULL in the column choices and some are NULL in the column lines.

What I tried is to do two consecutive left joins, but the second one overrides the first so all the rows that doesn't match in Table C (second left join) get a NULL value in the question column.

Is there a way to do a query that will not override previously joined data with NULL values? I'm working with Laravel Eloquent, so any of raw SQL or Eloquent Query would help me.

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