[ Grammar ]
My brother played the computer game while I _______ in my bedroom.
A. sleeps
B. was sleeping
C. sleep
D. am sleeping

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Grammar › ViewIt doesn’t matter ________ talking, the important thing is to pay attention and listen to instructions.
A. Who’s
B. Whose
Quantifiers › View
_________time did the phone ring before you answered it?
A. How much
B. Is there
C. How many