Cars, buses and bikes ________ stop when the traffic lights turn red.

          — _____ you find _______ ways to work out this problem, Jim? — Yes, I ______.

─ Look, Stella is there!─ That ______ be her. She doesn’t like singing.

---Where is Tom?        ---He hasn’t come to school today. I think he        be ill.

—Whose notebook is this?—It         Jane’s. It has her name on it.