【推荐1】In a word, working out is ________ (benefit) to us both physically and mentally. （所给词的适当形式填空）

【推荐2】Both sides agreed that our cooperation will be mutually________ (benefit) and will help keep regional peace.(所给词的适当形式填空)

【推荐3】Getting actively involved in class and reviewing in time will be ________ (benefit) to you. (所给词的适当形式填空)

【推荐1】She repeated that she had never taken________(legal) drugs. （所给词的适当形式填空）

【推荐2】Love is said to be a good medicine for ________ (emotion)harm. (所给词的适当形式填空)

【推荐3】单句语法填空
1. The experts invited to the conference were _____________（most）famous researchers in the field of China's science and technology.
2. Bill wasn't happy about the delay of the report by Jason, and _____________was I.
3. He is so stubborn. It's no____________（useless）trying to persuade him to go with us.
4. When people handle food_____________ （proper）, the risk of food poisoning is very small.
5. We found ourselves outside a _____________ （peace）village in France.
6. There were so many people talking in the concert hall that I couldn't concentrate_____________ the music.
7. China's strong rainstorms caused such huge economic_____________（lose）in the summer of 2015.
8. Keeping what belongs to another person amounts _____________ stealing.
9. We are all counting_____________ winning the game.
10. I should try to keep my mind _____________（concentrate）on what I have to do.