—Don’t play with the knife, ______ you’ll cut your hand. —Sorry, I ______ .
–Your English is good. --___________.
Please make a model plane and then ___________ it red.
This is our new English teacher, and ___________ name is Jane.
Mike and I ___________ classmates. We are in Class Two.
– Where is your Chinese teacher? --Sorry, I ___________ know.