The teacher insisted that Tom ___it.
A. do
B. did
C. does
D. would do
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If you had one billion yuan, what___?
A. would you be buying
B. would you have been bought
C. would you buy
D. will you have bought
He acted as if he ___everything in the world.
A. will know
B. knew
C. knows
D. won’t know
请把语法术语“subjunctive mood”翻译成汉语: ____。