【2013广东广州】I always tell my students ______ on the road because it’s really dangerous.
Japan attacked Pearl Harbor (珍珠港) of the united States December, 1941.
He threw away his cup and became even happier. Which of the following is correct for the underlined word in the sentence?
—__ _ do you study English? —By making flashcards.
Many trees and flowers ________ in our school last year,and they made our school a beautiful garden.
When I traveled in Thailand , I bought a ring . It __________ silver .