[ Present Tenses ]
Paul ___________________ (not answer) the question yet.
A. have not answered
B. has not answered
C. have not answering
D. has not answering

Random Topics:
Root WordGrammar TOEFLPast and Future TensesFuture Simple TenseSpeech TensesReported - GerundActive-Passive VoicesFuture Tenses, Conditionals and ProfessionsModals "Should"Simple Present Tense/be/Present ProgessiveOther quiz:
Grammar - Quantiflier › ViewHow ——- do you pay for the entrance fee?
A. any
B. much
C. little
D. many
Present Simple Passive › View
Carlos and Juan play the piano.
A. The piano was play by them.
B. The piano is played by them.
C. The piano is play by them.
D. The piano played by them.
Prepositions › ViewShe laughed ___ his joke.
A. with
B. at
C. to
D. in
E. on
Relative Clauses Pronouns › View
______________________ pass the test, I need to study hard.
A. plot
B. in order to
C. punch line
D. turn into
E. polite
