1 . Hearing the true story, all the students cried for those lost in the _______ (战役). （根据汉语提示单词拼写）

2 . As everyone knows, some insects are b______________ (有益的) to the crops. (根据中英文提示填空)

3 . As an exchange student, you are __________ (一定会) to encounter countless challenges and difficulties. (根据汉语提示单词拼写)

4 . It is a good idea to make a b______ summary of the main points of your speech to get yourself across to the audience. (根据首字母单词拼写)

6 . I hold the firm b________that you will benefit a lot from the activity. (根据首字母单词拼写)

7 . The couple chatted b________________ (短暂地) on the doorstep before going inside. (根据中英文提示单词拼写)

8 . Solders had temporarily closed the b______ between the two countries. (根据首字母单词拼写)

9 . The new regulation could bring real ________ (好处) for students. (根据汉语提示单词拼写)

10 . The _____________(广播节目) says that it is going to rain tomorrow, in which case the hiking has to be cancelled. (根据汉语提示单词拼写)