Is this your sister’s key, John?— No, it isn’t. ______ is in the bag.
The poor little boy often stands _____ the gate. He is waiting for his mother. [ ]
What do you think about Chinese Post-90s generation ?–They are _________ from those born before them. They are very aggressive and pretty confident because they never felt hardship.
Can you _______Chinese？—- No,but I can _______stories.
We should pay close attention to safety in schools because of frequent reports about accidents ____ students got injured or killed while in school.