It’s wise of you to________your father’s advice when you come to any difficulty.[ ]

Microblog is a platform ________ people canexpress their thoughts and communicate with each other by sending posts

He was extremely ______at the _______news!

I can think of many cases _____ students obviously knew a lot of English words and expressions but couldn’t write a good essay

“Nowhere else_______ a greater talent for innovation than in Internet-based businesses”, said the report.