—Hello, this is Tom speaking.—Tom? Oh, sorry, I ______ your voice.
#100373
A
didn’t realize
B
don’t realize
C
don’t recognize
D
didn’t recognize
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She ____ necklaces with the help of Ms Sullivan when she ____ that she had made some mistakes.
#101149
A
was working, was noticing
B
made, was noticing
C
made, noticed
D
was making, noticed
I like swimming, while what my brother enjoys ____. 
#104218
A
cooking
B
to cook
C
is cooking
D
cook