We have very strict quality control and anything imperfect is ____, so customers feel secure about our products.
In our class there are 73 students, ____ half wear glasses.
It’s uncertain ____ the fashion show will be held next week.
Some policemen were sent there to ________ the villagers ________ the trees.
______ the kids have left home , we’ve got a lot of extra space.
The news _____ the spaceship succeeded in returning to the earth spread everywhere.