单词拼写。 1 .Scientists have made many important_______ (发现). 2.An____ (突然的)change of policy made everything up. 3 .The store sells agricultural______ (产品). 4.I keep my reference books near my desk for_______ (方便). 5. He ate a light lunch in____ (期望)of a good dinner. 6. He likes inventions and he has applied for a p____ . 7. I've never seen so much m_____ and disorder. 8. It's an interesting idea but there are many p _____ difficulties. 9. As _____ world is essential to economic growth. 10. He goes to visit his grandparents not regularly but o _____ . |