[ Present Continuous Tense ]
The dorbell ___ ringing.
A. am
B. is
C. are

Random Topics:
WH- Question WordsComparison & Modal Verbs in Passive VoicePast simple regular verbsTenses - AuxiliariesAdverbs & to beFuture Perfect vs Future ContinuousPast Simple VS Used toAdverb Clauses of TimeBe Going To vs. WillGrammar TOEFLOther quiz:
Grammar › View. Choose the sentence in future perfect tense:
A. They are playing basketball.
B. They will play basketball.
C. They will have played basketball by noon.
D. They have played basketball.
Prepositions of Place › View
The blanket is ______ the ball.
A. on
B. in
C. under
D. beside
Tenses › ViewWhat are some typical keywords for the present tense?
A. this year, this month, today
B. at the moment, right now
C. for, since, yet, never
D. always, usually, sometimes, never
Adverbs of Frequency › View
______ it is really difficult to explain yourself to someone who doesn’t know you at all.
A. Hardly ever
B. Sometimes
C. Never
D. Always
