Antarctic pearlwort, a low-growing shrub with characteristic yellow flowers, is one of only two native flowering plants which ______ in Antarctica.
Which choice completes the text so that it conforms to the conventions of Standard English?
A. were occurring
B. occur
C. are occurring
D. will have occurred

Random Topics:
Modal Auxiliaries and Similar ExpressionsComparisonDependent ClausesSimple, Compound, Complex SentencesPast Perfect Simple TenseRelative & ModalsAspect or tenses of VerbsPresent / Future / Present Progressive / non Action VerbsPresent Simple vs Present ContinuousQuantifiers, Countable and Uncountable NounsOther quiz:
Grammar › ViewMost police officers ______________ uniforms to work. Only detectives in higher positions _____________ their street clothes.
A. wear, wearing
B. are wearing, are wearing
C. are wearing, wear
D. wear, wear
Tenses › View
I don’t own a laptop.
A. Simple Present Tense
B. Simple Past Tense
C. Present Perfect Tense
D. Future Tense of Be Going To
Grammar › ViewShe … (not; to listen) to what I am saying.
A. isn’t listenning
B. aren’t listening
C. isn’t listening
D. am not listening
Grammar › View
A:Can you do the dishes for me? B:OK. I ___ it in the afternoon.
A. did
B. am doing
C. was doing
D. will do
