Jim went to answer the phone. _________ , Harry started to prepare lunch.
The question that puzzled them is ____ they can get rid of the air pollution in the area.
Rock-climbing is a breathtaking activity, very popular nationwide among young people, ______ cooperation as well as courage plays an important role.
-----What about today’s temperature?------It’s the same as, if the weather report is exact as usual, _____ of yesterday.
— Can I pay the bill by check?— Sorry, sir. But it's the management rules of our hotel that payment ______be made in cash.
Agriculture _____ about 14 percent of global greenhouse gas emissions, and transporting the food around adds to the environmental cost.