---Be polite . You _____ talk to the old like that ! ---Sorry , I won’t .
Beihai Park is one of __________ parks in Beijing.
—__________ people are there in the meeting room?—About 200.
It’s quite late now, __________ Xiao Ming is still busy with his lessons.
I visit my grandparents __________ Saturday afternoon.
The students are from England and __________ maths teacher is from China.