t 1 5 Circle the correct options. It's difficult to remember that, when our grandparents were young, they have mobile phones or the Internet. Since then, there 2 so many technological advances. In the year 2000 the first smartphone ³_____, and more recently, several technology companies 4 smart glasses you can wear. 5____ them in five years' time? They haven't arrived in the shops yet, but the glasses ___ on sale very soon. If you' a pair of smart glasses, you will be able to download apps, just like on a smartphone and the information you ask for 9 on the glass. Amazing! 1 a wouldn't b used to 2 a have been was 3 a is produced produced 4 a has developed had developed b Are we wearing won't be b b buy b who b will be displayed 5 a Will we be wearing 6 a would be 7 a will buy 8 a whose 9 a displayed b b b Ⓒdidn't use to chad been c was produced c was developing c Have we worn care c might buy that c c was displayed d would d were d has produced d have been developing d Do we wear may be d d bought d what d display Tota​