[ 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
Select your answer:
Random Topics:
Grammar: SyntaxDistinguishing Future TensesRelative Clauses and UsagePresent tense AffirmativeComperative and SuperlativeEmployment VocabularySimple Present and Present Continuous TensesPast Continuous TenseGrammar Past and Future TenseOther quiz:
Vocabulary › Viewan act of traveling from one place to another
A. contribute
B. reveal
C. journey
D. humor
Grammar › View
These books are ……………………. (heavy) to handle.
Could you help me please?
A. heavier
B. heaviest
C. too heavy
D. heavy enough