When _______________ comes to saving energy, big changes start with small steps, like turning off the lights.
—Anything special in today’s papers? —Yes. “Confidence is more important than gold” by Premier Wen ________as a headline in many of today’s newspapers.
______________ twice a year, whether it is a car, a bus or a truck, is the rule that every driver must obey in this city.
The situation at Omaha Beach was so bad _______ the soldiers succeeded in landing on the beach with a lot of people losing their lives.
The weather turned out to be fine yesterday. I _______ have taken the trouble to carry my umbrella with me.
When was it you met him in the library?