I have studied my science test Thursday afternoon.A. at; on B. on; for C. for; on
--- I hear that you often play basketball with Mike. --- Yes, but I can't play___ him.
Mrs. Kong planned ____her vacation in the beautiful country, so he decided on China.
Dave has ___friends here, so he often stays at home by himself and feels lonely.
--- It's so cold today. --- Yes, it's___ colder than it was yesterday.
___ is important for us___ English well.