A: 我明天得去大使馆办签证。
B: Oh, you usually have to wait a long time.
B: 噢，一般情况下你要等很久。
A: I know. There's always a long queue with lots of people.
A: 我了解。一直不少的人排非常长的队伍。
B: But if you go early, it will be less busy.
B: 但假如你去得早，就不会那样拥挤。
A: You're right. If I go when the embassy opens, it won't be so busy.
A: 你说得对。假如大使馆一开门我就去，人就不会那样多。
B: That's what you should do. Go early!
B: 你就应该这么做。早点去！
Notes 注解
1、I've got to . . . / I've got to . . . is the same as I have to . . / I have to . . . or I must . . . / I must . . .eg I've got to go to the embassy tomorrow / I've got to go to the embassy tomorrow: You usually have to wait a long time / You usually have to wait a long time.
I've got to . . . /我得. . .和I have to . . / 我不能不 . . .或者I must . . . / 我需要 . . .是一个意思。比如：I've got to go to the embassy tomorrow /我明天得去大使馆办签证。 : You usually have to wait a long time /一般情况下你要等很久。
2. Remember the way of giving advice using If . . . / If . . . eg: If you go early, it will be less busy / If you go early, it will be less busy.
记住用If . . . / 假如. . .来提出建议。比如：If you go early, it will be less busy /假如你去得早，就不会那样拥挤
