1. Passport,please.

(What is the complete form of this one?)

2. Without a passport you can't leave a country and enter other countries.

2-1. Without a passport you can't leave a country or enter other countries.

(What is the difference between the two sentences? [and, or])

3. The game went on for five hours.
3-1. The game continued for five hours.
(Are both the same? Does 'go on' mean 'continue'?)

4. I had lunch in a second.
(What is the meaning of ' in a second'?)

1 - The whole question is this: May I have your passport, please?

2 and 2-1 are almost the same. 2 implies that you'd need the passport to leave one country and enter another. 2-1 implies that you'd be trying to do one or the other, but you'd be successful at neither without a passport.

3 and 3-1 mean the same thing. Yes, "go on" means the same thing as "continue." (And that's why, when people write or say "continue on" they are being redundant!)

4 seems to mean that you ate lunch so fast, it seemed as if only a second had passed between beginning and end! If you want to say, "I'm about to have lunch," you could say, "I'll have lunch in a second." In that phrasing, "in a second" just means the same as "very soon."

1. The complete form is -- "May I see your passport, please." or "I need to see your passport, please."

2. Both are o.k. But I prefer 2-1 because even if you could leave your own country without a passport, you can't enter another country without one.

3. Both are the same.

4. I'm not sure what you mean here. "In a second" means that you ate lunch in one second (1/60th part of a minute).

1. The complete form of "Passport, please" is "May I see your passport, please?"

2. The difference between the two sentences "Without a passport, you can't leave a country and enter other countries" and "Without a passport, you can't leave a country or enter other countries" lies in the logical operation used.

In the first sentence, "and" is used, which implies that both conditions must be met simultaneously. So, without a passport, you cannot leave a country and you cannot enter other countries. This implies that having a passport is a requirement for both actions.

In the second sentence, "or" is used, which implies that either of the conditions can prevent you from leaving a country or entering other countries. So, without a passport, you cannot leave a country or enter other countries. This implies that having a passport is a requirement for at least one of these actions.

3. Yes, both sentences "The game went on for five hours" and "The game continued for five hours" convey the same meaning. "Go on" in this context means to continue or to remain in progress.

4. The phrase "in a second" is an idiom that means doing something very quickly or instantly. So, when someone says "I had lunch in a second," it means that they ate their lunch very quickly, without taking much time. It emphasizes the speed at which they finished their meal.