My brother’s birthday is __________ April 21th. A. in B. on C. at
Our school reading room ________ from 8a.m. to 5p.m. every day.
---How does your mother look? ---_____________
---Shall we go and ______ hello to the old man? ---Good idea! Let’s go.
Miss Gu is _____ teacher. She teaches ____ Chinese.
—_______your mother good at cooking?---Yes, but my father _____cook well.