[ Present Perfect and Present Perfect Progressive Tenses ]
They ___ (build) the treehouse since last week.
A. are building
B. have built
C. build
D. have been building

Random Topics:
TOEIC Grammar and Vocabulary ReviewThings in EnglishAdverb Of PlacePast Tense vs Present Perfect TenseAdjective / Noun + to InfinitivePast Simple and Past Continuous TensesGrammar and PrepositionAlong & AgainstDemonstrative PronounsModal Verb, Passive VoiceOther quiz:
Quantifiers and Articles › ViewDifferentiate between definite and indefinite articles in the sentence: ‘I saw ___ elephant at ___ zoo.’
A. the, a
B. some
C. an
D. the
Future Tense › View
I think he…………… you a surprise.
A. will be given
B. will being given
C. will has given
D. will give
Type of Sentences › ViewThe wind was blowing stronger; a storm was on its way.
A. Imperative
B. Interrogative
C. Declarative
D. Exclamatory
Too / Very / So › View
The evening was__________ cold.
A. Very
B. Too
C. Either could be used here
