题目内容

用I had done或 I had been doing填空。 Sue was sitting on the ground. She was out of breath. She _________ (run).

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用I had done或 I had been doing填空。 When I arrived, everybody was sitting round the table with their mouth full. They ________ (eat).

用I had done或 I had been doing填空。 When I arrived, everybody was sitting round the table and talking. Their mouths were empty, but their stomachs were full. They ________ (eat).

用I had done或 I had been doing填空。 The house was very quiet when I got home. Everybody _________ (go) to bed.

用I had done或 I had been doing填空。 We ___________(play)tennis for about half an hour when it started to rain heavily.