[ Mixed General Quiz ]
Did you know that there are 6000 species ___ flies in Australia?
a. for
b. in
c. of

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Grammar › ViewMy sister (to clean) the bathroom every day.
A. cleaning
B. cleans
C. is cleaning
Progressive Tense › View
You (study) when she called you.
A. are studying
B. were studying
C. will be studying