used to / used for

Fiberglass is a material which is ___________ making hulls of boats .

• used for

• uses

• using

Cylinders are ______________ store oxygen under high pressure .

• used for

• uses

• used to

Cylinders are ______________ transporting oxygen with the diver .

• used for

• uses

• used to

A first aid kid should only be _________ treating minor injuries.

• used for

• used to

• uses

In Bulgaria, we're not _______ extreme weather.

• use to
• used to
• be used to
• getting used to

She is _______ singing solo because she has been doing it since she was a child.

• uses to
• use to
• used to
• using to

I ... French, but now I can say some things.

• didn't use to speak
• didn't used to speak
• used to speak
• use to speak

John ... the piano at all, but now he plays quite well.

• didn't use to play
• didn't used to play
• used to play
• use to play

My sister hates chocolate, but when she was younger she ... every day.

• didn't use to eat
• didn't used to eat
• used to eat
• use to eat

My father ... German, but now he's forgotten it.

• didn't use to speak
• didn't used to speak
• used to speak
• use to speak