In the past 10 years people have become more______ the safety of their privacy.

What do you want to do next We have half an hour until th ebasketball game.— . Whatever you want to do is fine to me.

Despite barriers and hardships，they ______ the research on cloning tissues.

Jim took one-hour ride just now. What a short time he spent finishing such a long way!— He is _____ experienced rider.

great efforts to practice English, Mary has made much progress inspoken English.