[ Grammar ]
Dave: ___________ you hold your breath for more than a minute?
A. Can
B. Must
C. May
D. Should

Random Topics:
The First Conditional (if/unless)Passive ModalsGerund and InfinitivePresent Progressive or Present SimpleModals of Obligation & ProhibitionVerb & GrammarVerb Form-Ing and Infinitive Verb PatternsGrammar and ReadingTenses and OpinionsOther quiz:
Prepositions › ViewWhere were you _______ April 30?
A. In
B. On
C. At
Homonyms › View
The ship was moored at the end of the ___.
a. key
b. quay
I think you ______ talk to your parents about it. I’m sure they’ll give you the best advice.
A. don’t have to
B. should
C. shouldn’t
D. have to
Vocabulary › View
The Smith family members are very serious about their faith and attend ______________ every week.
A. Synagogue
B. Therapy
C. Request
D. Reception
E. Application
