He kissed his wife and then ______ goodbye _____ her when he left home.
What do you think of the EXPO 2010?— It’s great, of course. people are going to Shanghai for the EXPO 2010.
Several ________ students came to the meeting.
There are some trees ______ our classroom. [ ]
The boy is so happy that he sings along _____ the music and dances _____it. [ ]