疑问代词：多久、为什么、怎么样、怎样
Explanation
这些疑问代词用于提问：'多久'询问时间长度，'为什么'询问原因，'怎么样'和'怎样'询问状态、情况或方式。
These interrogative pronouns are used for asking questions: '多久' asks about duration, '为什么' asks about reasons, and '怎么样'/'怎样' ask about condition, situation, or manner.
Examples
昨天的作业，你写了多久？
How long did you spend on yesterday's homework?
你为什么不去上课？
Why didn't you go to class?
爸爸的身体怎么样？
How is Dad's health?
这个字怎样写？
How do you write this character?
Related Grammar Points
人称代词：别人、大家、它、它们、咱、咱们、自己HSK 2二06
词类 · 代词
这些代词用于指代不同对象：'别人'指其他人，'大家'指所有人，'它/它们'指代非人类事物（单/复数），'咱/咱们'是口语化的'我们'（后者包含听话者），'自己'表示反身强调。
These pronouns refer to different entities: '别人' means others, '大家' means everyone, '它/它们' refer to non-human things (singular/plural), '咱/咱们' are colloquial for 'we' (the latter includes the listener), and '自己' emphasizes self-reference.
Examples (8)
我想听听别人的意见。
I'd like to hear others' opinions.
大家一起唱歌吧。
Let's all sing together!
那个书包很好看，我喜欢它的颜色。
That schoolbag looks nice; I like its color.
我家有猫有狗，它们都是我的朋友。
I have both cats and dogs at home—they're all my friends.
咱一起走吧。
Let's walk together.
明天咱们去动物园，怎么样？
Tomorrow, let's go to the zoo—what do you think?
你一定要相信自己。
You must believe in yourself.
自己的事自己做。
Handle your own matters yourself.
指示代词：那么、那样、这么、这样HSK 2二07
词类 · 代词
这些指示代词用于比较程度或指代方式/状态。'那么/这么'强调程度（如'那么漂亮'），'那样/这样'指代具体方式或状态（如'这样写'）。
These demonstrative pronouns indicate degree or manner/state. '那么/这么' emphasize degree (e.g., 'so beautiful'), while '那样/这样' refer to specific methods/states (e.g., 'write this way').
Examples (4)
你女朋友有她那么漂亮吗？
Is your girlfriend as beautiful as her?
筷子不能那样拿。
You shouldn't hold chopsticks like that.
他哥哥有你这么高。
His older brother is as tall as you.
这个汉字这样写。
This Chinese character is written like this.
用“好吗、可以吗、行吗、怎么样”提问HSK 2二75
提问的方法
这些词语都用于提出建议、请求或征求对方意见，放在句末构成疑问句。'好吗'和'可以吗'较为礼貌，'行吗'较口语化，'怎么样'用于提出建议并征求意见。
These words are used to make suggestions, requests, or ask for the other person's opinion, placed at the end of a sentence to form a question. '好吗' and '可以吗' are more polite, '行吗' is more colloquial, and '怎么样' is used to make suggestions and ask for feedback.
Examples (4)
我们明天八点出发，好吗？
We're leaving tomorrow at 8 o'clock, okay?
你明天早点儿来，可以吗？
Can you come a bit earlier tomorrow?
你的词典借我用用，行吗？
Can I borrow your dictionary?
我们今天吃面条儿，怎么样？
How about having noodles today?
用 "什么时候、什么样、为什么、怎么样、怎样”提问HSK 2二76
提问的方法
这些疑问词用于不同类型的提问，分别询问时间、特征、原因、状态和方式。
These question words are used for different types of questions, asking about time, characteristics, reasons, conditions, and methods respectively.
Examples (5)
你们什么时候见面？
When do you meet?
你喜欢什么样的朋友？
What kind of friends do you like?
你为什么没去上课？
Why didn't you go to class?
明天天气怎么样？
How's the weather tomorrow?
你明天怎样去学校？
How will you go to school tomorrow?
用“呢”构成的省略式疑问句“代词/名词+呢？”提问HSK 2二77
提问的方法
这种句式用于在已知一个信息的情况下，询问另一人或事物的情况，省略了与前文相同的谓语部分。
This structure is used to ask about another person or thing when one piece of information is already known, omitting the predicate that is the same as the previous context.
Examples (2)
我去医院，你呢？
I'm going to the hospital, what about you?
书在桌子上，笔呢？
The book is on the table, where's the pen?
用“是不是”提问HSK 2二78
提问的方法
“是不是”用于提出是非疑问句，通过重复动词或整个句子来确认事实或情况，相当于英语中的反义疑问句结构。
Used to form yes/no questions by repeating the verb or entire clause to confirm facts/situations, similar to English tag questions.
Examples (3)
你要去体育馆打球，是不是？
You're going to the gym to play ball, right?
是不是你拿了我的笔？
Did you take my pen?
你是不是有很多中国朋友？
Do you have many Chinese friends?