1.Scientists have already made robots walk and dance.(变为否定句)Scientists ______ _____ robots walk and dance ______.2.There are many famous predictions.The predictions never came true.(合并为一句)There are many famous predictions __

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1.Scientistshavealreadymaderobotswalkanddance.(变为否定句)Scientists___________robotswalkanddance______.2

1.Scientists have already made robots walk and dance.(变为否定句)Scientists ______ _____ robots walk and dance ______.2.There are many famous predictions.The predictions never came true.(合并为一句)There are many famous predictions __
1.Scientists have already made robots walk and dance.(变为否定句)
Scientists ______ _____ robots walk and dance ______.
2.There are many famous predictions.The predictions never came true.(合并为一句)
There are many famous predictions _______ never ______ ______.
谢谢——痛哭流涕——鞠躬

1.Scientists have already made robots walk and dance.(变为否定句)Scientists ______ _____ robots walk and dance ______.2.There are many famous predictions.The predictions never came true.(合并为一句)There are many famous predictions __
haven't made, yet
which, came true

1.haven't made yet
2.that came true