[ Expressing Obligation and Modals ]
You …. use a telephone in class.
A. must
B. must not

Random Topics:
Auxiliary Verbs, if, unless and ModalPoetryZero & First ContidionalGrammar (want to/ need to/ have to)Verb & GrammarConditional SentencesPunctuation and GrammarTenses UsagePresent Simple vs Present ContinuousPresent Perfect Simple & ContinuousOther quiz:
Past Tenses › ViewWhen he was single he … to Spain every winter, but now he has to go to France with his wife and children.
A. would go
B. had gone
C. went
D. had been going
Present Perfect Continuous › View
_______ your grandmother _________ a great time?
A. ARE / PLAYING
B. IS / HAVING
C. IS / DOING
Future Time and Tenses › ViewI think my best friend ____________ the new job next month.
A. will start
B. is starting
C. going to start
Describing Words › View
The road is very ………….. and bumpy.
A. smooth
B. rough
