题目内容：

    Different countries have different tipping customs. When you travel, you need to know how to tip in the country that you’re in; otherwise you’ll leave servers angry everywhere you go.Here are just a few guidelines to tipping around the world.

Brazil

There will always be a standard 10% service charge added to your bill, and you won’t necessarily have to tip. If you do feel like being generous, an extra 5-10% will really make your server very happy. Just remember to do this as skillfully as possible—Brazilians don’t make a big show of this.

Dubai

In Dubai it’s a rule for restaurants to charge 10% tip on all restaurant and bar bills. You can add a couple of dirhams（迪拉姆,货币单位）to this if you feel like it. Waiters are not paid very much in Dubai, so it is always very appreciated.

Germany

German bars and restaurants will include the tip as part of what you owe, but that’s not all you have to pay. It is a custom to round the bill up after that, usually to the euro. This can be anywhere from 5-10%. When it’s time to settle up, you won’t get a bill: your waiter tells you the total and then you tell them how much you want to pay, including your “tip”, and hand over the money.

Czech Republic

While locals in the Czech Republic don’t leave tips, that doesn’t mean you’re off the hook.Foreign tourists are definitely expected to leave some kind of tip for service—as long as you’re in a high tourist traffic area, like Prague for instance. The standard tip is 10%.

India

If you like the service, go ahead and tip your server 5-10%. You have to adjust that amount though, based on how big the meal you’re eating is. If the bill is for a small meal, and totals less than 300 rupees, tip the full 10%. If the bill is higher, tip towards the 5%.

1.In which country do customers have to tip at least 10% for the service?

A.Dubai B.India

C.Germany D.Czech Republic

2.Which country has different tip cultures between citizens and foreigners?

A.Dubai B.Germany

C.India D.Czech Republic

3.If your bill is 2000 rupees in India, it is proper for you to tip________ rupees.

A.10 B.80

C.120 D.200