Everybody, men and women, old and young, _____ sports and games.
| A．enjoy | B．were enjoying | C．enjoys | D．is enjoyed |
Everything comes with ________ price；there is no such ________ thing as a free lunch in the world.
| A．a；a | B．the；/ | C．the；a | D．a；/ |
Many people agree that ________ knowledge of English is a must in ________ international trade today.
| A．the；an | B．a；/ | C．the；the | D．/；the |
In the market，vegetables are sold by ________ kilogram，I mean，by ________ weight.
| A．the；/ | B．/；/ | C．the；the | D．/；the |
—John has put forward ________ most challenging question for us to answer.
—Yes，it really is.I have never heard ________ harder one.
| A．the；/ | B．/；the | C．the；the | D．a；a |
The education of ________ young is always ________ hot and serious topic.
| A．/；/ | B．the；a | C．/；the | D．the；/ |