The company had a_________ of $3.8 million.
A. turnup
B. turndown
C. turnover
D. turnon
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The old system was fairly complicated _________ the new system is really very simple.
A. whereby
B. whereon
C. wherein
D. whereas
They expect the antibiotic products to __________ Southeast Asia and Africa.
A. be exported by
B. be exported to
C. be exported in
D. be exported at
He remains ____________ about the future.
A. optimism
B. optimistic
C. optimist
D. optimise
Ancient ________ methods still survive in our country.
A. farming
B. farmer
C. farms
D. farm