[ Modal and Compound Nouns ]
We ____ be quiet in the library.
A. can
B. must
C. could
D. may

Random Topics:
Progressive TensesConditionals Type IGrammar & VocabWord Form & Verb TenseSubordinating Conjunctions and ClausesAdverbs and AdjectivesGiving and Asking for AbilityInversions and SubjunctivePast Tense and NeutralSimple and Compound SentencesOther quiz:
Grammar › ViewWhich verb tense is used to discuss actions or events that will happen in the future?
A. Simple Past Tense
B. Simple Future Tense
C. Simple Present Tense
D. Present Continuous Tense
Comparison Degree › View
My drawing is _________________ than yours. (colorful)
A. more colorful
B. most colorful
C. colorfuller
D. colorfullest