[ Grammar ]
What is the negative form of ‘Open your book’?
A. No open your book
B. Don’t open your book
C. Not open your book
D. Open not your book

Random Topics:
Nouns - Word Form-IONPast Perfect or Past Perfect ContinuousTenses and StructuresOrder of AdjectivesGrammar - SimilesTenses, Tag Questions, Phrasal VerbsTime PhrasesGrammar and IdiomsPhrase vs ClauseModals and Comparative SuperlativeOther quiz:
Past Tense › ViewShe usually (finish) her homework by five o’clock
A. made
B. belonged
C. finished
D. did
E. got
Tenses › View
It is raining now. It began raining two hours ago. It ______ for two hours.
A. has been raining
B. was raining
C. is raining
D. has rained