[ Grammar ]
America __________ more than 400 years ago.
A. discovered
B. has discovered
C. was discovered
D. discovers

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Grammar - Be going toPresent Perfect Negative and InterrogativePast Simple & Past ContinuousPrepositions of Time and PlaceAlthough, Though, In spite of, DespiteVerbs + Gerund or InfinitiveVerbs and Possessive AdjectiveReported Speech and TensesIf ConditionalsSimple Present Negative and QuestionOther quiz:
Grammar › ViewThe sun is shining and there are very few clouds; __________, I am sure it is going to rain.
A. what’s more
B. although
C. thus
D. nevertheless
Adjective › View
The steep cliff could be seen from the road.
A. Steep
B. Cliff
C. From
Maria usually __________ her work schedule on Sundays.
A. is planning
B. plans
C. planned
D. will plan
Grammar › View
Correct this run-on.
Sometimes I try hard sometimes I take the easy way out.
___
A. Sometimes I try hard, sometimes I take the easy way out.
B. Sometimes I try hard. Sometimes I take the easy way out.
C. It is not a run-on.