[ Modals ]
Children _______________chat in class.
A. don’t have to
B. mustn’t
C. didn`t have to

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Grammar - Collective NounsMuch, many, a lot of, a few, a littleAdjectives and VocabularyGrammar & TensesPhrases and TensesSimple Past Tense and Past Perfect TenseInversions and SubjunctiveModal Verb, Passive VoiceNarrative TensesWh-QuestionOther quiz:
Zero and First Conditionals › ViewWhich sentence is “zero conditional”?
A. If it rains, I won’t go to the baseball game.
B. She’ll miss the bus if she doesn’t leave soon.
C. If you heat water till 100°, it boils.
Grammar › View
The Museum _______ from 9a.m to 6p.m everyday except Tuesday and Wednesday
A. opens
B. open
C. will open
D. will be open