Topics: Present Perfect
They have worked together ____________ twenty years.
A. for
B. since
C. never
D. have
Select your answer:
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Vocabulary and Grammar › ViewMy mother is going ______ this house.
A. sold
B. sell
C. to be sold
D. to sell
Vocabulary › View
A component of soil made by the weathering of rocks into tiny grains; rough and gritty texture.
A. Sand Dunes
B. Delta
C. Sand
D. Glaciers