----What a nice bike! How long ____ you ____it? ----- Just two weeks.
People can visit Tiansheng Bridge without paying money ______June 13, 2015.
I am so sorry that I forgot to bring any food with me. And it’s kind of you to share _____with me.
---Do you know second-hand smoke?---To protect our health and memory.
—________? —He is of medium build and has a big nose.
Jim was seen ______ in the library from 3p.m. to 5p.m yesterday.He is often noticed _____ the library.