[ Grammar ]
are forms of carbon has been known since the late 18th century.
A. Diamonds
B. Diamonds, which
C. Because diamonds
D. That diamonds

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Modals - Have to or ShouldFuture Perfect TenseAdjectives & QuantifiersPreference & Future TensePronounciation and GrammarModal PossibilitiesConjunctions and Verb TensesGrammar : Must (Necessity)AnalogyComparative & Superlative AdverbsOther quiz:
Tenses › ViewThe birds ___ (fly) to the South in winter time.
A. fly
B. are flying
C. flies
D. flied
Grammar & Vocabulary › View
He was so tired that he ___________ skipped dinner to go straight to bed.
A. really
B. even
C. still
D. already
Present Simple and Present Continuous Tense › ViewI___ in Sukabumi.
A. lives
B. live
C. am living
Future Tense › View
Don’t worry. I ____ the dishes.
A. are washing
B. ‘ll wash
C. ‘ll be wash
D. ‘m going to wash
