[ Grammar ]
…..realizing what it was, he felt obviously relieved.
A. by the time
B. on
C. while

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Grammar and StructurePresent Simple Tense PassiveModal Verbs & Time PrepositionsPast Simple, Present Perfect TenseBasic GrammarTypes of SentencesAdjectives-Comparison, SuperlativeGrammar - PunctuationModal AuxiliariesModal Auxiliary VerbsOther quiz:
Articles › ViewPlease turn off ______ air – conditioner when you leave ______room.
A. x/the
B. the/the
C. a/x
D. the/a
Tenses › View
The search committee — three candidates for the chief executive position.
A. nominating
B. nomination
C. has nominated
D. has been nominated