用被动语态改写句子。 There is somebody walking behind us. I think somebody is following us. I think we ____________by somebody.
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用被动语态改写句子。 The waiter is serving him. He ________ by the waiter.
用被动语态改写句子。 They are carrying the boxes into the van. The boxes ________ into the van.
用被动语态改写句子。 They didin't give me the information. I ________ the information.
用被动语态改写句子。 They didin't give me the information. The information ________ to me.