【正文】
n the underground. We can also use the past continuous tense to talk about two actions happening at the same time in the past. Supersmart is a smart puter and Ultrasmart is a smart robot. Look at their notes about what they did on Wednesday and plete the paragraph below. While Supersmart (1) _______________ from the supermarket, Ultrasmart (2) _______________________ for Jacky. While Supersmart (3)________________ ___________________for David’s family, Ultrasmart (4) ___________________ with Jacky’s son. While Supersmart (5)________________ Chinese, Ultrasmart (6) ______________. was ordering food was making a new hydrogen car was collecting holiday information was playing tennis was teaching David was making lunch. While Supersm