[ 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
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 movementOther quiz:
Modal Verbs › ViewYou ___ be careful when crossing the street.
A. must
B. could
C. might
D. have
Future Tenses and Modals › View
What is an example of ‘going to’ for a future plan?
A. I am going to visit my friend next weekend.
B. I was going to visit my friend next weekend.
C. I am visiting my friend last weekend.
D. I will have visited my friend next weekend.
Will vs Verb Infinitives › ViewChoose 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