--- The professor gave a really good speech. --- I suggest you ______ him some specific questions about his work experience.
We work together to achieve our common purpose:_________world that is safer, cleaner and healthier than one we found.
_________ the wind and the sun, the color on the board gradually ran.
It is proposed that another meeting _______ to discuss how to give more support to the underdeveloped area.
_________ I picked up the receiver, I realized that someone had dialed the wrong number.
Snow is rare in this area. You can hardly see any snow, ________ it is winter.