syuttyousyuuri wo erabimasu.

It is read:

• 出張修理 = しゅっちょうしゅうり
• を = お (pronounced o)
• 選びます = えらびます

So the whole sentence is:

しゅっちょうしゅうり を えらびます。

出張修理 is a compound noun.

• 出張 = going out to a customer/site for work
• 修理 = repair

Together, 出張修理 means something like on-site repair, house-call repair, or repair service that comes to you.

Because 出張修理 works as a single compound noun.

In Japanese, it is very common to combine nouns directly like this:

• 出張 + 修理 → 出張修理

Using の is not always necessary when two nouns naturally form a set expression. In this case, 出張修理 sounds like a standard service category or label.

を marks the direct object of the verb.

Here, the verb is 選びます (choose/select), and the thing being chosen is 出張修理.

So:

• 出張修理 = the thing
• を = marks it as the thing being chosen
• 選びます = choose

A natural grammar breakdown is:

[出張修理] を [選びます]
[on-site repair] [choose]

This is just how modern Japanese works.

The particle を is normally pronounced o, even though it is written with the character を. In older Japanese, the pronunciation was closer to wo, which is why the spelling remains.

So in modern speech:

• を → usually pronounced o

That is completely normal.

The dictionary form is 選ぶ (えらぶ), which means to choose or to select.

選びます is the polite -ます form of 選ぶ.

So:

• dictionary form: 選ぶ
• polite form: 選びます

選びます is the polite non-past form.

In Japanese, the non-past can mean:

• present: choose / am choosing (depending on context)
• future: will choose

So this form does not strictly separate present and future the way English often does. The exact meaning depends on the situation.

Yes, but that is very normal in Japanese.

Japanese often leaves out the subject when it is obvious from context. So this could mean things like:

• I choose on-site repair.
• We choose on-site repair.
• Please select on-site repair. (in certain menu/instruction contexts)

The sentence is still natural without saying the subject explicitly.

Yes. In context, especially on a form, app, or service menu, 出張修理を選びます can sound like a selection statement such as select on-site repair or I am choosing on-site repair.

Japanese often uses polite verb forms in interfaces and service-related text, so this kind of phrasing is very common.

Normally, standard Japanese is written without spaces.

So the usual writing would be:

出張修理を選びます。

The spaces in your example are probably there only to help learners see the parts more clearly.

Yes, you could.

• 選びます = more common, everyday choose
• 選択します = more formal or technical select

Both can work, but 選びます is usually the more natural everyday verb. 選択します may sound a little more formal, official, or system-like.

Either can work.

• choose sounds more natural in everyday English
• select often fits menus, forms, and service options

So the best English word depends on context. In a customer-service or UI setting, select is often a very good match.