Loading ad... Nguyễn HàMember for 1 year 7 months Age: 16-18 Level: 3 Language: Vietnamese (vi) ID: 2220616 22/11/2022 Country code: VN Country: Vietnam School subject: Khoa học (1063419) Main content: Hóa học (2103792) From worksheet author: There is/ there are Other contents: There is/ there are Loading ad... Share / Print Worksheet Google Classroom Microsoft Teams Facebook Pinterest Twitter Whatsapp Download PDF Loading ad...