按要求完成下面按句子1 Are these his computer games?(改为肯定句）2 These are backpacks.（改为单数句）3 His grandfather is my friend.（改为一般疑问句）4 That is his English dictionary.（改为复数句）
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按要求完成下面按句子1 Are these his computer games?(改为肯定句）2 These are backpacks.（改为单数句）3 His grandfather is my friend.（改为一般疑问句）4 That is his English dictionary.（改为复数句）
按要求完成下面按句子
1 Are these his computer games?(改为肯定句）
2 These are backpacks.（改为单数句）
3 His grandfather is my friend.（改为一般疑问句）
4 That is his English dictionary.（改为复数句）
按要求完成下面按句子1 Are these his computer games?(改为肯定句）2 These are backpacks.（改为单数句）3 His grandfather is my friend.（改为一般疑问句）4 That is his English dictionary.（改为复数句）
1 These are his computer games.
2 This is a backpack.
3 Is his grandfather my friend?
4 Those are his English dictionaries.