How many _________ can you see? I can see one A. rulers B. ruler
He is interested ____________ math. A. onB. inC. at
What's ____________ hobby?A. youB. heC. your
When ____________ your mother born?A. wereB. wasC. is
She was born ____________ 2012. A. inB. onC. at
He is two years ____________ than my little brother. A. oldB. olderC. elder