-- Is that girl Susan?-- It ______ be her. She left for Beijing yesterday.A. needn't B. can't C. mustn't
Tomorrow we’ll go to the city park ____it is sunny.
____work is very important in a discussion.
You ____be careful with fire when you have a picnic in the forest. It’s too dangerous.
---Lucy, could you help me ____the map on the blackboard? We won’t need it. ---With pleasure.
---May I have your name, please? ---______.