Mary is very clever and_____ worth teaching , but her brother is not .Look he is now _____ asleep in class.
.Along with the increasing number of the Chinese students in Australia, ____David Irvine , they____the role of a bridge for the link-up and exchange between the two countries.
.It is a common theme in many fiction stories that the world may one day be____by insects.
.Evidence came up ____ specific speech sounds are recognized by babies as young as 6 months old.
.Britain’s press is unusual in____it is divided into two very different types of newspaper : the equality press and the popular press.
.The favorite drink is beer , but many people like bars as____for the friendship they find there as for the drink.