—Alice, feed the bird today, _____?—But I fed it yesterday.
.The teacher used to stay up deep into the night. ______ , he made himself ill.
.What________ pity that you couldn’t be there to receive ________ prize!
.Water, which seems to be so simple and common, is ______ makes life possible.
The number of students in this college _____ by 10% every year.
.______ the beginning of the 19th century did scientists know that all matter is made up of atoms.