[ Subject Verb Agreement ]
The number of chromosomes in a cell (varies / vary) from species to species.
A. varies
B. vary

Random Topics:
Relative Clauses beginning with PrepositionsModals and Comparative SuperlativeLinking VerbCorrelative conjunctionsModals and PhrasesGrammar: Simple Past and Past ContinuousModals and Past TensesOrdering AdjectivesPassive Voice, Question Tag, PrepositionsSimple Future TenseOther quiz:
Vocabulary › Viewearlier, previous
A. prior
B. infinite
C. revenue
D. sequel
Grammar › View
Rudi …. Dona go to school together.
A. and
B. ,and
C. but
Conjunctions › ViewTom is very friendly …. he is also a very good student.
A. and
B. but
C. so
D. because
Vocabulary › View
Quixotic means
A. noble but rash
B. sensible but unfair
C. sneaky
