Is the underlined phrase right or wrong?

My brother picked me up from the university when my classes ended.

• right

• wrong

• I don't know

Is the underlined phrase right or wrong?

Their business was doing badly, so they down closed it.

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• wrong

• I don't know

Is the underlined phrase right or wrong?

I've bought a new smart watch, but I don't know how to set it up.

• right

• wrong

• I don't know

Is the underlined phrase right or wrong?

Your music is too loud. Can you turn down it, please?

• right

• wrong

• I don't know

Is the underlined phrase right or wrong?

I like cakes, but I'm trying to lose weight, so I've given them up.

• right

• wrong

• I don't know

Is the underlined phrase right or wrong?

My parents are florists, and they've just opened up a new shop.

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• wrong

• I don't know

Is the underlined phrase right or wrong?

My boss is really busy. Could you, please, call back him later?

• right

• wrong

• I don't know

Is the underlined phrase right or wrong?

You won't remember their phone numbers unless you write down them.

• right

• wrong

• I don't know

Is the underlined phrase right or wrong?

Mariam and Adam have had a baby boy and they have named him after his uncle.

• right

• wrong

• I don't know

Is the underlined phrase right or wrong?

I've bought a beautiful picture. Could you, please, help me put up it?

• right

• wrong

• I don't know