I’m sure David _________ when we get home.
.—What did you do when you saw the girl in the flood? —I did what I could .
.On the contrary,I think it is Tom, you, to blame.
.After working abroad for several years, Gill wants to to a permanent job.
.Topics for composition should be to the expeniences and interests of the students.
—There is hardly an environment on earth —Some species of animals have not adapted successfully.