With Shanghai World Expo drawing near, volunteers are making use of every minute to ________ their foreign language because language volunteers must pass a written test.
There are citizens who support graffiti, saying it’s a welcome addition to _________ dull street.
George couldn’t remember when he first met Mr. Anderson, but he was sure it was _______ Sunday because everybody was at _________ church.
—Do you have anything to say for yourselves? —Yes, there is one point _________ we must insist on
Cars do cause us some health problems—in fact far more serious _________ than mobile phones do.
No progress was made in the trade talk as neither side would accept the conditions of _________.