Does ______ matter if he can't finish the job on time

单项选择题Since our knowledge is ______ none of us can exclude the possibility of being wrong.

单项选择题Who wrote The American

单项选择题Does the TV say ______ happened in Iraq every day

单项选择题A bank is the place ______ they lend you an umbrella in fair weather and ask for it back when it begins to rain.

单项选择题______ around the Water Cube, we were then taken to see the Bird's Nest for the 2008 Olympic Games.