Mr Smith caught hold ___ Bob and said, “This is a good lesson___ you.” [ ]

Nanyang has changed a lot in the past five years. —Yes. You can see lots of new buildings ,flowers and trees on ___side of the street.

If our governmentattention to controlling food safety now, our health ________ in danger.

I’m______ building a new factory here.It will be bad for the environment. [ ]

How often do you go skating?——________.I can’t skate at all.