We have _________ some organizations to help the poor students in the western areas of China.

—What ____ this in English?—It _____ a book.

—What do you think of the new comer?—She is easy          ． 

Jim received a present from his friend, but he didn’t _________ it.

—What were you doing when he ________“hello”to you?—I _______in front of the blackboard.