Electricity, like other forms of ______, has greatly increased in price in recent years.
He ___ without saying good-bye to them, for he always has good manners.
. He was not brave. He ____ jump down from the roof.
—Is your mother still a teacher? —______.
—Shall I go and buy two more bottles of beer? —No, I’ve already bought twenty. That ___ be enough for us two.
.—Did you visit the museum? —No, we ____ it, but we spent too much time shopping.