[ Modal Verbs ]
There’s no sign of the dog anywhere. Someone________________________ it out.
A. must have let
B. is bound to have let

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Active & PassiveSimple Present ProgressivePhrasal Verb With TakeTenses and StructuresFuture TensesAspect or tenses of VerbsVocabullary TestTOEFLPast Perfect TenseCity PlacesOther quiz:
Grammar › ViewVictor served in the Army for several years. The nouns are….
A. Victor, Army
B. Army, years
C. served, Army
D. Victor, Army, years
Coordinating Conjunctions › View
Choose the appropriate coordinating conjunction for the sentence: “She was tired __ she stayed up late studying.”
A. for
B. so
C. but
D. or
Grammar & Vocabulary › ViewThere are lots of schools in the world ……….don’t have water or electricity.
A. who
B. which
C. where
D. why
Comparative Adjectives › View
Which adjective word has two syllables?
A. beautiful
B. kind
C. terrible
D. pretty
