[ Modal Speculation ]
He _______ known the answer to the question.
A. might have
B. could have
C. must have
D. should have

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Time and CalendarTenses UsageFood VocabularyHave toArticleSimple and Past TensesPast ModalsModals of ObligationAsking & Giving AttentionPoetry VocabularyOther quiz:
Modal Verbs › ViewGreenpeace operates internationally and _____ governments and large oil companies through feats of direct action which attract public sympathy.
A. could have embarrassed
B. had to embarrass
C. would embarrass
D. is able to embarrass
E. should be embarrassed
Gerunds and Tenses › View
. Which sentence is in the present continuous tense?
A. I play soccer now.
B. I am playing soccer now.
C. I playing soccer now.
D. I played soccer now.
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A. can
B. can’t
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Idioms › View
“About time” means ___.
a. at the right time
b. soon
c. at last
