按要求改写下列句子,一空一词,含缩略词。Jack has an eraser in his pencil case.(改为一般疑问)
Jack an eraser in his pencil case?I think tennis is very interesting. (改为否定句)
I tennis is very interesting.Her books are on the sofa.(对划线部分提问)
are books?There are old bikes under the tree.(变为单数句)
There old bike under the tree.打乒乓球对我来说很简单。(完成译旬)
Playing ping-pong is me.