This area experienced. ___ heaviest rainfall in _____month of May. A. 不填; A. B. a; the C. the; the D. the ; a
No one knows for certain how the first Americans arrived in _____ is now the United States.
A journal is not necessarily a reliable record of facts, for the writer’s impressions _____ colour the telling of events.
She seated herself at a small table in the restaurant, waiting _____.
Most online classes let students learn _____ their own pace.
_____the size of the universe, some researchers believe that there is life beyond our planet.