（跪求）He read this book last week.(变疑问句、否定句)
变为否定句和疑问句,要注意过去式、原型、过去分词
1.The sun set at twenty past seven.
2.He ate his lunch at one o'clock.
3.They did their homework last night.
4.He came by car this morning.
5.The sun rose at half past five.
6.We swam across the river yesterday.