[ Grammar and Vocabulary ]
Water ___ at 100 degrees Celsius.
A. boil
B. boils
C. boiled
D. will boil

Random Topics:
Simple Verb TensesGrammar ( going to)Grammar ClausesPast Perfect Simple TenseContrastive ConjunctionsAdverb Clause Connectoras...as, comparatives, superlativesGrammar / PronounsArticles and PrepositionsMust or Mus notOther quiz:
Modal Verbs › ViewYou ____ stay out after 10 p.m. Remember to be back home by then.
A. must
B. mustn’t
C. should
D. don’t have to
Prepositions - Conjunctions › View
The Estes Museum explores the life and work of artist Mariella Estes and is located just _____ of Valparaison, Chile.
A. outside
B. through
C. next
D. beyond
Vocabulary › ViewHe had a distinguished(傑出的) career as a __________.
A. adult
B. attention
C. dinosaur
D. diplomat
Grammar › View
I _____ football for five years.
A. Have playing
B. Have been playing
C. Has playing
D. Has been playing
