[ Modals ]
_______be sitting down at your desk when the bell rings.
A. You can
B. You must not
C. You have to
D. You do not have

Random Topics:
Regular Plural NounsGrammar and Verb TensesTOEIC Grammar and Vocabulary ReviewConjunctions and PrepositionsComparative and Superlative AdjectiveAdverb PhrasesRegular and Irregular VerbsPast Simple (to be)Conditional ClauseTenseOther quiz:
Past Modals › ViewIt’s too bad she moved away before you asked her out. You two ___ a great couple.
A. must have made
B. can’t have made
C. could have made
Grammar › View
Patricia’s father works in a bank. _________likes to be in contact with people.
A. She
B. He
C. They
D. We
Linking Verb › ViewJohn _______ impolite today. He is always polite and helpful to others.
A. is
B. was
C. is being
D. was being
Simple vs Present Continuous Tenses › View
Ronald and I … football in the school yard now.
A. am playing
B. are playing
C. is playing