【推荐1】Two of the authors of the review also made a study published in 2014________showed a mere five to 10 minutes a day of running reduced of heart disease and early deaths from all causes. （用适当的词填空）

【推荐2】The person ______ made the speech here yesterday is a musician from the USA.

【推荐3】The book ________I am reading is written by a famous writer.（用适当的词填空）

【推荐1】Is this the factory ________ makes laptop computers?（用适当的词填空）

【推荐2】在下列句子中的空白处填入适当内容或括号内单词的正确形式。
1. _____ (make)different kinds of friends, I joined an online chat group.
2. When a plane is landing, passengers need to keep their seat belts fastened_____ it has come to a complete stop.
3. _____(train) hard to win the spring marathon is the goal which I’m aiming for.
4. I’ve never quite figured out _____ he can still play the piano after his serious hand injury!
5. Because I _____(take) a power nap, I was able to deliver the important speech with a lot of energy.
6. Many famous people sign their name in a way _____ can’t be recognized.
7. Do you remember _____ amazing time we went hiking together in the Rocky Mountains?
8. _____ the future holds for the field of high-speed travel is unknown to us.
9. If one wants to get ahead in his career, he _____ go without some of the comforts of life.
10. I _____(visit) all 50 U.S. states by my 13th birthday next month, becoming the youngest person ever to do so.

【推荐3】This was a time during________ there were no radios, no telephones or no TV sets. （用适当的词填空）