.Mr Smith was __________to hear the _______news that he won the first prize.
251. The America’s selling weapons to Taiwan cast a shadow on the Sino-U.S relationship. Which of the following can explain the underlined part?
250. Every year Harvard University awardsto excellent foreign students in theoretical physics.
249. A_____ has taught us what atoms are made up of and how powerful the atom bomb is.
248. A group of the red scarves are playing on the seaside_______.
247. He found it quite impossible to learn _____ well in less than 6 months so he registered for the next semester(term).