From Duolingo:

• 你喜欢上網做什麼？ – What do you like to do online?
• 她在家看报纸。– She reads the newspaper at home.
• 你在哪裏上班？– Where do you work?
• 我在學校學習漢語。– I study Chinese at school.
• 我哥哥在飯館吃飯。– My older brother is eating at the restaurant.

Vocabulary

• 喜歡 / 喜欢 [ㄒㄧˇ ㄏㄨㄢ] – to like, enjoy
• 上網 / 上网 [ㄕㄤˋ ㄨㄤˇ] – online
• 什麼 / 什么 [ㄕㄣˊ ㄇㄜ˙, ㄕㄜˊ ㄇㄜ˙] – what
• 報紙 / 报纸 [ㄅㄠˋ ㄓˇ] – newspaper
• 哪裏, 哪裡 / 哪里 [ㄋㄚˇ ㄌㄧˇ] – where
• 上班 [ㄕㄤˋ ㄅㄢ] – to work, to be on duty
• 學校 / 学校 [ㄒㄩㄝˊ ㄒㄧㄠˋ] – school
• 學習 / 学习 [ㄒㄩㄝˊ ㄒㄧˊ] – to study
• 漢語 / 汉语 [ㄏㄢˋ ㄩˇ] – Chinese
• 飯館 / 饭馆 [ㄈㄢˋ ㄍㄨㄢˇ] – restaurant
• 飯 / 饭 [ㄈㄢˋ] – cooked rice, food, meal 

從Duolingo:

• 我的朋友在吃早飯。 – My friend is eating breakfast.
• 奶奶在跳舞。 – Grandma is dancing.
• 你在做作業嗎？ – Are you doing homework?
• 他們在學漢語。 – They are learning Chinese.(now, this week, these months, this semester, etc.)