Playing football not only makes us grow up tall and strong but also ________________(give) us a sense of fair play and team spirit. 7. Silk ______________(become) one of the primary goods traded along the Silk Road by about 100BC. 8. Just as I got to the school gate, I realized I _____________(leave) my book in the cafe. 9. It is reported that a space station _______________(build) on the moon in years to come. 10. I ______________(choose) from hundreds of applicants to attend the opening ceremony last month.