[ Vocabulary ]
The cost of producing one more unit of a good
A. Interest
B. Productivity
C. Marginal
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Grammar › ViewSwimming is my ________________.
A. humble
B. alone
C. pleasant
D. hobby
Comparative › View
The shoes are ___________ the sneackers.
A. thightes than
B. most thighter than
C. more thighter than
D. thighter than
Tenses › ViewThe boys __________________ in the garden when they __________________ their father’s steps. (WORK, HEAR)
A. had worked – heard
B. were working – heard
C. had been working – heard
D. are working – heard
Article › View
He eats …apple daily.
A. A
B. The
C. An
D. X