[ Question Tags ]
Jack and Jill have cleaned their room, __________________?
A. did he
B. have you
C. haven’t they
D. didn’t we

Random Topics:
Simple Present ProgressiveRelative Pronoun/AdverbsGrammar - Present Perfect TenseArticles & QuantifiersTOEIC GrammarWould rather/ would prefer/ would likeDirect Object and Indirect ObjectVerbal CommunicationMixed GrammarActive & Passive VoiceOther quiz:
Grammar and Vocabulary › ViewThe planets of our solar system ______ the sun, which is a star.
A. biosphere
B. orbit
C. spacecraft
Grammar › View
He often helps other people. I ___ he is a good man.
A. think
B. thinking
C. have been thinking
D. had been thinking
Present Perfect Simple vs Continuous › ViewShe __________ (not start) her new job yet.
A. has not started
B. has not been starting
Vocabulary & Grammar › View
The first city………the Summer Olympics twice was Paris, France.
A. Choosing
B. Choose
C. To be choosing
D. To choose
