If you are tired, just think about climbing one __ at a time.
a. stair
b. stare

Random Topics:
Prepositions and AdverbsModals of Speculation and DeductionPhrasal Verb and ModalPersuasive TextPassive VoicesSentence CompletionFood VocabularyVerb TenseThird Grade ExamTOEFLOther quiz:
Comma › ViewChoose the correct explanation for Comma Rule 1.
A. Use a comma and a conjunction to separate two main clauses in a sentence.
B. Use a comma when there is a conjunction.
C. Use a comma when there is a conjunction and one dependent clause.
Active & Passive › View
Change from Active to Passive.
She will take a photograph.
A. A photograph will be taken by her.
B. A photograph was taken by her.
C. A photograph is taken by her.
Future Tenses › View•Don’t drive too fast like this. We’re going to have an accident!
A. •Predictions (based on present evidence)
B. •Decisions (taken before now – intentions/plans)
C. •Future arrangements (emphasis on intentions)
Grammar › View
Both Asian and Western students seem __________ about how to answer the questionnaire of the survey.
A. confusedly
B. confused
C. confusing
D. confusion