【题目】—Mary, is this your sister's cup?

【题目】The world's population will still ________ unless we do something to control it.

【题目】My English teacher gives me some advice on how to improve my listening _______.

【题目】Teachers don’t like their students to be for school.

【题目】I love reading books because I can have much ________ from them.

【题目】—Is Helen mother?

【题目】I have a computer, I don’t play computer games on it.

【题目】Please tell me ________.

【题目】This my sister and those my brothers.

【题目】My brother often makes mistakes ________ grammar.