The oil shortage ________ the prices of chemical fertilizers on the world market.
A drove oil
B drove up
C drove in
D drove off
There are five ________ mistakes in this picture. Can you find them and win a prize?
A intensive
B deliberate
C planned
D calculated
These studies will yield valuable lessons ________.
A in which to save lives and protect property
B how to save lives and protect property
C in how to save lives and protect property
D about those to save lives and protect property
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