Question 4: In the explanation there’s written 这孩子. Here there’s no measure word. It should be 这个孩子.
Question 11: 他 means neither “she” or “it”, but only “he”.
Question 13: 在 doesn’t mean “in”. “In” in Chinese is 里/里面/里边. 在 means both “to exist” and “to be at, in or on (place and a noun which indicates the location: ex 里面，外面，前面…)” Moreover in the explanation as an example there’s written 我在学校. A more correct form is 我在学校里.
Question 27 In the example in the explanation would be more natural and correct writing 你喜欢水果 instead of 你喜欢果.
Last but not least (I don’t remember which question it was) “what” is not 什 but 什么.
Funny Otterنویسنده
Thank you very much for corrections! I just started to learn it and created the quiz for self-education too.
Question 4:
In the explanation there’s written 这孩子. Here there’s no measure word. It should be 这个孩子.
Question 11:
他 means neither “she” or “it”, but only “he”.
Question 13:
在 doesn’t mean “in”. “In” in Chinese is 里/里面/里边. 在 means both “to exist” and “to be at, in or on (place and a noun which indicates the location: ex 里面，外面，前面…)”
Moreover in the explanation as an example there’s written 我在学校. A more correct form is 我在学校里.
Question 27
In the example in the explanation would be more natural and correct writing 你喜欢水果 instead of 你喜欢果.
Last but not least (I don’t remember which question it was) “what” is not 什 but 什么.