Nowadays people in Shanghai separate their waste to make it easier for it ______.

(单选题)（ ） (单选题)On hearing the utterance “it’s hot here”, the listener opene (单选题)Tyler was extremely angry, but cool-headed enough to ______ (单选题)When a teacher teaches young learners English pronunciation, (单选题)The teacher refused to have his daughter study in his class, (单选题)When the teacher says to the whole class “Stand up and act o (单选题)Teachers could encourage students to use ______ to gather an (单选题)A language proficiency test that only consists of multiple-c (单选题)It is said that the agreement ______ between the two compani (单选题)Skilled-integrated activities allow teachers to build in mor