5. (A). He forgot where tonight’s concert will be held.

　　(B). He didn’t notice he had dropped the tickets.

　　(C). He didn’t recall when the concert started.

　　(D). He didn’t remember to get the tickets.

　　6. (A). Ruth was puzzled by her inability to sleep.

　　(B). While doing puzzles, Ruth fell asleep.

　　(C). Instead of sleeping, Ruth worked on puzzles.

　　(D). Ruth couldn’t do the puzzles because she was tired.

　　答案与音频文本：

　　D C

　　5. My brother forgot to pick up our tickets for this evening’s concert.

　　6. Ruth stayed up all night and did puzzles.