[ Grammar ]
_______ on _______ well requires discipline.
A. Focusing, doing
B. Focused, doing
C. Doing, focused
D. Focusing, do

Random Topics:
Parallel Structure or Combining SentencesAdjectives or AdverbsPhrasal verbs and Prepositional PhrasesPresent and Past TensesGerunds and TensesPreposition and AdjectiveFirst & Second ConditionalTenses and ConclusionsModals of ObligationPresent Perfect and Simple Past TenseOther quiz:
Prepositions › ViewShe has been working ________ early morning.
A. In
B. Since
C. At
D. During
Tenses › View
Future Perfect Tense
By next year, I _____ a car for 10 years.
A. am owning
B. owned
C. will have owned
D. had owned
Mixed Tenses › ViewShe knows all tenses, …….she?
A. is not
B. was not
C. does not
D. has not
Phrasal Verb › View
I can’t ______ tell you how grateful I am for all your help.
A. grow into
B. begin to
C. live in
D. try to