青书学堂: (单选题) It's very easy to clean up the room. __________ can do it.(本题2.0分)
举一反三
- Room service is（）in the room. A: to serve meals B: to do service C: to clean up D: to take care of guests
- 青书学堂: (单选题) 单选:设S={0,1},*为普通乘法,则< S , * >是( )。(本题1.0分)
- 青书学堂: (单选题) No matter _________ hard I try, I can never catch up with him.(本题2.0分)
- 青书学堂: (单选题) 单选:设,*为普通乘法,则[S,*]是( )。(本题1.0分)
- You ________ clean that room. It is very clean now.