[ Grammar ]
Lan is very tired. ________, she has to finish her assignment before going to bed.
A. Although
B. So
C. Therefore
D. However

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Grammar › ViewMany of the participants __________ in the discussion.
A. engage
B. engages
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Cultural diversity is an asset that is ____ for poverty reduction and the achievement of sustainable development.
A. crucial
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A. should
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The pool was freezing cold, ________________?
A. wasn’t it
B. isn’t it
C. doesn’t it
D. didn’t it
