[ Present Tenses ]
My sister __________ her homework now. (to do)
A. has done
B. has been doing
C. is doing
D. does

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Countable - UncountableVerb + PrepositionAdverbs and Adverbial PhrasesModal Verbs & Reflexive PronounsDemonstrative Pronouns and Verb TensesFirst ConditionalComparative Adverba, an, the, zero articleAdjective + to + VerbModal Verbs of Certainty and PossibilityOther quiz:
Grammar › ViewThe company will upgrade _________ computer information systems next month.
A. There
B. Their
C. It’s
D. Its
Vocabulary › View
Graphologist
A. Handwriting expert
B. Psychiatrist
C. Manipulates bones and nerves
D. Doctor of internal medicine
E. Skin specialist
All workers must be equipped with safety devices such as helmets ____ entering the construction site.
A. about
B. during
C. from
D. before
Prepositions › View
… the kitchen
A. in
B. on
C. at
