The time and effort he has devoted during the past few years ______ trees in that remote area is now considered to be of great value.
---Thanks for your trouble. ---Not at all. I’m _____ pleased to help you.
—The government should think about the medical reform again and take measures to improve it. —_________. The medical services and efficiency are not good at the moment.
—Did you know more about the mine accident? —Oh, sorry, I had no idea. I ____the Rescue Center now.
It___ how long the shock that explosions hit London transport system will stay in people's hearts.
About 698,000 laptops were sold in China in ____second quarter, ____12.1 percent increase from a year ago.