a group of two or more atoms that form the smallest identifiable unit through chemical bonds
A. atom
B. element
C. compound
D. molecule
Random Topics:
Perfect ModalsFirst and Second ConditionalModals and VocabularyReported Speech and Reporting VerbsConditional Sentence Type 0-3Direct-Indirect SpeechAdjectives & Quantifiers-ing / InfinitiveAdjective & AdverbPossessive AdjectivesOther quiz:
Modals Auxiliary › ViewJamil: I played football the whole day yesterday, and now I fail in the exam.
Ahmad: You ……….. harder.
A. should study
B. must study
C. would rather study
D. used to study
E. should have studied
Passive Voice › View
Levi Strauss invented the blue jeans.
A. The blue jeans was invented by Levy Strauss.
B. The blue jeans were invented by Levy Strauss.
C. The blue jeans are invented by Levy Strauss.
Vocabulary › ViewThe respiration done in human beings is done automatically.
Respiration means:
A. Eye hand coordination
B. The blood flow
C. Single complete act of breathing
D. None of the above
Adverbs of frequency › View
I …. eat sugar because I am diabetic.
A. hardly ever
B. always
C. generally