—Oh, Jesus, I can’t cut the durian (榴莲) into two halves however I tried!—Easy, boy! Why not use _____ knife?
---How many teachers are there in your school? --- __________. , but I'm not sure.
There are _________ doctors and nurses working hard in that hospital.
--- What's one fourth and a half, do you know? --- Yes, it's _________.
Now children, turn to page ________ and look at the _______ picture in Lesson Two.
Both of the two rulers are broken. I want to buy a _______ one.