[ Vocabulary ]
Verb, the state of keeping careful watch for possible danger or difficulties
A. Synchronize
B. Vigilance
C. Consternation
D. Allocate

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Grammar › ViewMany of the participants __________ in the discussion.
A. engage
B. engages
C. engaged
D. have engaged
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Cultural diversity is an asset that is ____ for poverty reduction and the achievement of sustainable development.
A. crucial
B. fundamental
C. critical
D. indispensable
Grammar › ViewBy the time we arrived at the concert hall, all the tickets …………… .
A. have been sold
B. would be sold
C. are being sold
D. had been sold
Grammar › View
You ____ your new book.
A. has read
B. have read
C. is read
D. are read
