On video, Doctor Zhong Nanshan ________ teenagers to study hard in the first lesson of this term.( )
A.allowedB.trainedC.encouraged
—Thank you for showing me around your school, Daming. —_____________.
We are playing football. Come and ______ us.
---_________ the door, please. ---Please come in. The door________.
I don’t think it is a good idea, ________ ? A. isn’t it B. is it C. do we
Some of the apples are bad,but I believe the rest sweet.