Many scientists in the West hold the view that it will be no longer a question soon___________man can report the earthquakes, volcanic eruptions and tsunamis.
The boy would rather _______ the story to himself than ______ it with his friends.
---- Why does the river smell terrible? ---- Because large quantities of water______.
Cathy went to the hospital alone. If she had told me about it, I _____ with her.
Of all the books on the desk, ______ is of any use for study.
Sam _____ some knowledge of the computer just by watching others working on it.