Wang Wei is good running. He thinks it is good his health.A. for;at B. at;for C. at;to
—Thank you for offering a great deal of _________ to me in my research. —It was my great pleasure.
The girl is so excellent that you ________ praise her too much.
— What do you think of the book?— Oh, excellent. It is worth ________ a second time.
— How is your English study? — Not bad. But I ________ learning English grammar.
If you successfully complete a difficult task ________ hard work, you’ll become confident.