"Whose notebook is this?" "It ____ Jim's. It has his name on it." A. can't be B. can be C. must be
—____ your sister know Tom? —No, she ____.
—Hi, Lucy. Your skirt is very nice. —____
—Can you give this book ____ Jack? —Yes, I can.
My name ____ Jack. Liu Ying and Sun Mei ____ my friends.
—____ are you? —I’m five .