[ Prepositional Phrases ]
How many prepositional phrases are in the following sentence:
In 1928, Alexander Fleming discovered penicillin, marking the start of modern antibiotics.
A. One
B. Two
C. Three
D. Four
Select your answer:

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Present Perfect Tense › ViewThe shop has been closed _____ Monday.
A. for
B. since
Grammar › View
Being a writer _____ spending a lot of time in front of a computer
A. include
B. contain
C. involves
D. involve
