I _____ come to the concert tonight, but I’ll give you a call later and tell you for sure.
A. may
B. can
C. must
D. could

Random Topics:
Preposition and Preposition PhrasePresent Simple vs Present ContinuousGerund Subject or ObjectComplex Sentences with Adverb ClausesCollective NounsGrammar - Countable/ UncountableAdverbs and Time ExpressionsVerb-ing or to VerbFuture SimpleHabitual and Continuous TensesOther quiz:
Grammar › ViewWe should _____ use hazardous chemical cleaning products nor waste non-renewable energy sources to save the earth.
A. either
B. neither
C. both
D. not only
Phrasal Verbs and Verb Forms › View
Mr. Pike is very good at making____ story to tell his children at bedtime.
A. in
B. up
C. on
D. at
Modal Auxiliary Verbs › ViewForm a question using a modal auxiliary verb to ask about the prohibition of using mobile phones in the school.
A. Will you use mobilephones in the school?
B. Should you use mobilephones in the school?
C. Do you have to use mobile phones in the school?
D. Can’t you use mobile phones in the school?
Vocabulary › View
an ordered pair (x,y) that represents a point on a graph.
A. origin
B. points
C. plane
D. coordinate
