French language Q&A Forum

I'm confused by the correct answer to this question:

>>La population du Nigeria est de plus de ________ personnes.

I wrote "un cent million de". However, the correct answer was "cent millions de".

Why do we drop the "un" in this case (unlike the examples)? Why is "millions" plural, even though it is only 1 million?

Why not Patrick sent mal

Couldn't loisir be used for hobby or is hobby more common (another English word adopted by the French!)?

Checking a couple of points

Both 'shampoing' and 'shampooing' are formally accepted and used spellings, but the latter is being 'corrected' to the former here. 

A 'bottle' of shampoo is mostly advertised and sold as 'un flacon' - ' j'ai fini le flacon ' is not accepted as correct though. 

https://www.dictionnaire-academie.fr/article/A9S1514-A

https://www.carrefour.fr/p/shampoing-cheveux-normaux-carrefour-soft-3560070965137 

https://www.e.leclerc/fp/dercos-psolution-shampooing-traitant-keratoreducteur-3337875787222

I've read all the comments here and in the related links, several times.

It seems the rule be stated as, there's NO gender/number agreement of the participle when there is a direct object following the verb.

Ça vous dit ?

From the answers I see to this question in this discussion, we are expected to look through something like 1200 verb conjugations to find which ones fit this category. Even on the Lawless site for Irregular ir verbs, it lists the irregular ir verbs, but only one that changes in the future to an er verb conjugation. Where can one get a simple list of the ir verbs that change to er verb conjugations in the future tense?

The lesson that drew me here said the correct answer was in the imparfait.  Ils ne habitaient plus ici but the examples in the lesson do not transition from the present to the imparfait. What makes the difference?

Is there topic on negative with "Il ya a" Can't seem to find it.

I came across this question in the quizzes. Why are these two sentences correct? One uses the feminine form and the other the masc. They are both referencing the time in the past. How does one determine if it is about the duration or precise moment?

“J’ai passé la journée avec Martin.”

I spent a day with Martin

“J’ai passé un an en Espagne quand j’avais dix-neuf ans.”

I spent a year in Spain when I was 19