It is not so difficult to learn program well.        you need is patience and persistence.

 — He got his first book published. It turned out to be a bestseller.— When was __________?—__________ was in 2000 when he was still in college.

Tom said the project would be finished by November, ______personally I doubt very much.

 I’d appreciate ______ , to be frank, if you would like to teach me how to use blog and twitter on the Internet.

The traffic on the main streets has a longer green signal than______ on the small ones.