[ Grammar ]
” How can you ___ that this new pen belongs to you?” the shopkeeper asked the man suspiciously.
A. prove
B. proves
C. proved
D. proven

Random Topics:
Adjectives or AdverbsTransitive or Intransitive VerbsTOEFLAdjectives with PrepositionKinds of SentencesModalsSubject Verb Agreement Irregular VerbProgressive TensePresent or Past TensesState Verbs and Action VerbsOther quiz:
English Morphosyntax › ViewThe two countries were ___________ peace with each other.
A. at
B. in
C. from
D. about
First Conditionals › View
If I have a lot of money, _________________________________.
A. I buy a car
B. I’ll buy a car
C. I won’t buy a car
Grammar › View_____ you ever been to New York City?
A. Have
B. Did
C. Has
D. Do
Simple Past Tense › View
Sorry, I __________ hear you at the door.
A. Wasn’t
B. Didn’t
C. Am not
D. Will not
