[ Tenses ]
I _____________ the windows all day without any help. Two more and I can have a rest. ( to wash )
A. washed
B. am washing
C. have washed
D. have been washing

Random Topics:
Future Perfect ContinuousModal Verbs and ConditionalsComparatives - SuperlativesConnectives (because, due to, owing to, because of)City PlacesPrepositions of TimeDefinite & Indefinite Pronoun & ConditionalsQuantifiers and ArticlesAdverbs of Manner, Likes and PreferencesGrammar - Nouns, Verbs, and AdjectivesOther quiz:
Modal Verbs › ViewI ______ get up earliy. I have a lot to do.
A. should
B. must
C. don’t have to
D. mustn’t
Conditional Sentences › View
If Tung and Thanh (be) older, they would play in our football team
A. are
B. were
C. had been
Grammar › ViewThe parrot _______ be free tomorrow
A. will
B. want
C. to
Sentence Structure and Verb Tenses › View
Choose the sentence that is in the present perfect progressive tense:
A. I have been reading this book for a week.
B. They are eating lunch.
C. She wrote a letter.
D. We will play soccer.
