Grammar Quiz

[ Vocabulary ]

Mathematical geneticists showed that the gene frequency change by __________ is much smaller than the change by natural selection.

A. mutation

B. forest fire

C. invisible

D. vision

Select your answer:
A  B  C  D  E 


Random Topics:

Verb Moods and Vague PronounsModals and PrepositionLinking Words and ConjunctionConjunctive Adverbs and PunctuationPassive Voice Present SimpleVerb FormsComparison DegreeAdverb of FrequencyGerund or InfinitiveVerbs of movement

Other quiz:

Will vs Verb Infinitives › View

Choose the correct answer:

We love to _________

A. pizza

B. dance


Phrasal Verb › View

look for sth in an appropriate book/list

A. look up

B. look through

C. look round

D. look over