一般过去时否定句与疑问句 — 英语词汇题
题目
按要求改写下列句子（注意be动词的过去式形式）。1. They were happy at the picnic last Saturday.（改为否定句）2. She was at the library last weekend.（改为一般疑问句）3. Was it rainy in Beijing last Sunday?（作否定回答）4. We were tired after the trip.（改为否定句，缩写形式）