. Expo 2010 Shanghai China will offer ____ wonderful opportunity for ____ cross-culture dialogues.A. a; 不填 B a; the C. 不填; the D.the; 不填
________ the rainy weather,the streets were full of people on May Day.
Christmas is drawing near.Have you ________ a present for your best friend,Mary?
Washing hands frequently is one of the effective ways to avoid ________ by diseases.
The plane is ________ to arrive at 8 p.m.,but the foggy weather makes it hard to say.
It took Susan weeks to regain her ________ after a bad ________.