___________ of precious gems is determined by their hardness, color, and brilliance.
A. The valuable
B. It is the value
C. It is valuable
D. The value

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Be Going To vs. WillNoun QuantifiersCoordinating and Subordinating ConjunctionsDescribing WordsModals in the Past - Speculation and DeductionGrammar - direct/indirect objectsSecond ConditionalsModal Verbs and Contrastive ConjunctionsFamily VocabularyConditional TypesOther quiz:
Grammar › ViewMy uncle works in —–
A. banks
B. banking
C. banked
Reported Speech › View
“I was sleeping when Julie called”
A. she said she had been sleeping when Julie called
B. she said she was sleeping when Julie called
C. she said she had sleeping when Julie called
Reported Speech › ViewMs Pang asked, ‘Should we cancel the grammar test?’
A. Ms. Pang asked should we cancel the grammar test
B. Ms. Pang asked if we should cancel the grammar test.
C. Ms. Pang asked we should cancel the grammar test.
D. Ms. Pang asked if should we cancel the grammar test
Grammar › View
What form does the ‘past perfect’ tense take?
A. Subject + have/has + V3
B. Subject + had + V3
C. Subject + have/has + V2
D. Subject + had + V2