[ Present Continuous, Present Perfect and Used to ]
The children _________________ a mess in the kitchen.
A. The children have made a mess in the kitchen.
B. The children has made a mess in the kitchen.
C. The children have make a mess in the kitchen.

Random Topics:
A/AnClause Markers TOEFL GrammarModals and TensesHas Got & Have GotGrammar and IdiomsGerund and InfinitivesBe used to vs used toFuture - Will and Be going toUnless If First ConditionalCountable Vs Uncountable NounsOther quiz:
Grammar Comma Usage › View. In the sentence “The Rock and Roll Hall of Fame is located at 1100 Rock and Roll Boulevard Cleveland Ohio,” where should commas be added?
A. After “Fame” and “Boulevard”
B. After “located” and “1100”
C. After “Boulevard” and “Cleveland”
D. After “Hall” and “of”
Subject Verb Agreement › View
In 1789 the Trench Revolution _____.
A. begin
B. begins
Conditional Sentence - Type 1 › ViewIf he … the book. I will borrow it in my school library
A. hasn’t
B. doesn’t have
C. have
D. haven’t
Progressive Perfect and Simple Verb Tenses › View
He had worked as a cashier in this bank.
A. past perfect
B. past progressive
C. past
D. present perfect
