That was a ......... invention. Everybody said it was crazy
Wacky
If I had money now, I'd buy a ...................... smartphone because of the high quality
Top-of-the-line
If I had bought that ............ printer, I would have had more time for other activities. It's faster than mine
Efficient
This is a ........................ computer. It's really old
low-tech
If she had had The All body Umbrella, the cars ........... her skirt
wouldn't have splashed
A lot of people ............(die) if they ..........(invent) the vaccine
would have died / hadn't invented