中国大学MOOC: As one of your obligations, you must ______.
举一反三
- 中国大学MOOC: You must ____________ your application by the end of the week.
- 中国大学MOOC: You must fancy _________ a lot with your friends.
- 中国大学MOOC: You must concentrate more _______ your English.
- 中国大学MOOC: If you go abroad, you need your ________ as one of your travel documents.
- As one of your obligations, you must ______. A: make copies of keys if you lost them. B: remove any snow or ice from the front of your properties if you are renting a house C: seek permission when you have people over D: ask your landlord to remove any snow or ice