[ Vocabulary ]
The same amount of matter exists before and after the change—none is created or destroyed
A. closed system
B. conservation of matter
C. chemical reaction
D. solution
Random Topics:
Adjectives and comparisonsGrammar - to be, possessive, have gotGrammar - Sentence StructureGrammar on ConditionalsTransitive or Intransitive VerbsNoun, Pronoun, Adjective, VerbRegular Plural NounsPerfect Verb Tenseswill, be going to, would like toPast PerfectOther quiz:
Grammar › ViewYehia Haqqi……….of as the father of the Egyptian modern short story and novel
A. Still is thinking
B. Still is thought
C. Is still thought
D. Is still thinking
Passive Voice › View
Mr Johnson… this book.
A. is translated
B. translated by
C. translated
D. was translated
Vocabulary › Viewa container made of metal bars and used for keeping animals in
A. upset
B. emphatic
C. cage
D. ground
Modals › View
A: Where are my keys?
B: I don’t know. You __________ them in the car!
A. may have left
B. could leave
C. had to leave
D. should have left