Please __________ the numbers and I’m sure they will __________ more than 1, 000. A. add up; add to B. add up; add up C. add up; add up to D. add to; add up
The buses, ____were already full, were surrounded by an angry crowd.
Can you solve such problems ___raised by the audience?
We often think of the days ___we spent together on the island.
Air, _ __we breathe every day, is around us all the time.
The radio set __ _ last week has been out of order.