—The terrible accident is under investigation.—Actually, quicker action _____ those workers trapped in the mine.
—How much of the foreign expert’s speech have you understood?—Next to nothing. I wish I _______ harder at English.
The Expo site should be _______ from anywhere in the city of Shanghai within 90 minutes by bus, subways and special taxis.
--- Where did you meet him for the first time? --- Maybe it is in the museum ______ we listened to the lecture ______ we got to know each other.
We work together to achieve our common purpose: ______ world that is safer, cleaner and healthier than______ one we found.
At the United Nations Climate Change Conference, the UN Secretary General points out that, ______, the climate situation will get worse and worse.