Which modal verb expresses a strong certainty about the past?
A. Might have
B. Must have
C. Can have
D. Should have

Random Topics:
If/Unless - Conditional type 1Mixed GrammarPerfect ModalsAdjective Clause and Adverb ClauseModals for Ability, Possibility and PermissionModal VerbHave to/Has toTransitional WordsSubject and Verb AgreementComparisionOther quiz:
Grammar › ViewIn Europe, one of the smallest countries, Belgium, produces the ___ variety of beer styles of all and is sometimes thought of as a “Disneyland” for beer drinkers.
a. great
b. greatest
c. greater
Present Simple › View
When subjects are ” He/ She/ It/ Singular nouns”.
The verbs ending in _______________________ + es
A. o, s, ch, sh, x
B. o, s,ch,sh
C. o, s, ch, x
D. o, s, e, m,a
Opinion / Agreement › ViewDona : . . . . . . .
Mike : I think it is nice and clean.
_____
A. what do you think of this match
B. what about this new apartment
C. how do you feel about the election
D. how about watching movie
Grammar › View
I____ (study) all day. I’m so tired. I haven’t finished yet.
A. have been studying
B. has been studying
C. is studying
D. am studying
