[ Grammar ]
John ____________________________have called Amy, but he didn’t have her number. (past obligation)
A. must
B. could
C. should
D. may
Random Topics:
The Present Progressive TenseComparison of Adjective and AdverbGrammar - Verb FormsSecond Type ConditionalPronouns and Subject Verb AgreementAcademic VocabularyModal Verbs for Permission and Obligation1st and 2nd ConditionalsAdverbial Concession ClausesPassive Voice with ModalsOther quiz:
Relative Clause › ViewWe have some picture books that children can read.
A. that children to read
B. for children to read
C. for children to be read
D. children reading
Idioms › View
Before going to the supermarket, make ___ a list of items you want to buy.
a. into
b. out
c. for
The age of an tree can be determined by-
A. Measuring its height
B. Measuring its diameter
C. Analyzing its sap
D. Counting the annual growth rings of its stem
E. NONE OF THE ABOVE
Grammar › View
The swimming pool is deep. The lake is…
A. deeper than the swimming pool.
B. narrow than the swimming pool.
C. older than the swimming pool.
D. younger than the swimming pool.