A
    Many people wake up in the morning and watch their mobile phones first, and then they watch their mobile phones last before they go to bed. Our mobile phones are never far away from us. Data show that we watch them every 12 minutes on average. Since we are bound to be inseparable from mobile phones, we should obey the relative "cell phone manners". The following five things are best avoided.

l         Talk on the phone at mealtimes

An absolute no-no for most (81%) of us. Yet half of us have been with others who've done it. And more than a quarter of young adults admit to it.

Even looking at the screen at the dinner table is not acceptable—for some. More than four in five people aged 55 and over think it's unacceptable to check messages, compared with around half (46%) of 18 to 34-year-olds.

l         Listen to loud music on public transport

Three-quarters (76%) of us object to watching videos and playing video games loudly on public transport, as well as listening to music, but it doesn't stop us doing it.

l         Be on the phone when you should be listening

You're at the cashier's but on the phone mid-conversation. Do you hang up, say a polite "hello" and pack away your bread and goods—or chat on regardless?

It's a source of frustration for many a shop worker, receptionist and waiter. One hotel's checkout worker was so annoyed when a customer refused to end her call that she refused to serve her.

l         Walk while looking at your phone

They are always getting their head down, eyes fixed on the screen—and they're right in your path. Twitter user @tiredhorizon has a public warning for them. Put away your phones in public buildings, hospitals and near reversing lorries.

l         Play with devices while watching TV with others

Four in 10 (41%) adults think it's unacceptable to use a phone while seated with the family on the sofa in front of TV.

For the older generation (those over 55) it's more of an issue—62% object to it—than for younger adults—only one in five are against it.

21. Which one of the following is unacceptable according to the text?

A. Play with cellphones while watching TV alone.   B. Talk on the phone at mealtimes.

C. Listen to loud music at home.                 D. Talk with others while working.

22. Which one of the following is NOT true?

A. It’s unacceptable for some to stare at the phone screen at the dinner table.

B. Watching videos and playing games loudly on the subway will annoy many people around.

C. Strict bans on playing phones while walking on the road have been made .

D. The old are more against playing a phone in a family get-together than the young.

23. Which column is the passage probably taken from?

A. Art & Movie.        B. Travel.       C. Business.    D. Health & Life.