Science and technology are advancing so quickly that _____ is a possibility today may be a reality tomorrow.
We watched __________ when he cleaned and repaired the laptop computer.
I like this jacket better than that one, but it costs almost three times __________
After the equipment was introduced, they produced __________ machines this year as the year before.
Sweet memories __________ as I looked at the pictures __________ were taken at the beach last summer.
When the expression first came into being, people refused to use it but __________ they began to accept it.