This term all the teachers in Xinghua are thinking about ___________ to make the students learn better by changing their teaching ways. 

---My son isn’t good at math. Could you please give him          ?--- Sure.

He isn’t feeling________. He wants to lie down and rest.

 The two men walked _________ the forest and got to a small house. 

 --What __________ the number of students in your school? --More than 2,000. And a number of them __________ listening to English songs.