We can look the flowers at the park.A. at B. in C. on
What ____________ he do? A. does B. do C. is
He is interested ____________ math. A. on B. in C. at
What's ____________ hobby? A. you B. he C. your
When ____________ your mother born? A. were B. was C. is
She was born ____________ 2012. A. in B. on C. at