-- Is that girl Susan?-- It ______ be her. She left for Beijing yesterday.A. needn't B. can't C. mustn't
–What are the police doing? –They are running __________the robber to catch him.
–What ________ would you like to buy? –Some cakes, please.
–Would you like some more bread? –_________. I’m very hungry
We shouldn’t read ________ the sun. It’s bad ______ our eyes.
–What _______ Amy going to buy for the trip? –She will buy some fish. What ____ we buy then?