You________ drink it, for it is poisonous.

Johnny, you _________play with the knife, you_________ hurt yourself. 

—There aren’t any toys in our suitcase．Where have you put them?—Oh, no．That old lady sitting next to us ______ have taken ours by mistake.

—Who is speaking there? —It        be Uncle Li. He has gone to Shanghai.

— Jack, take more clothes when going camping. It ______ be very cold in the mountains.— Thank you, Mum. I will.