The train arrived ____Nanjing _____ 6.00 _____the afternoon of Sep. 13.
Ms. Smith teaches ______ English _______.
Can you tell me how _______ the train station?
The West Lake is great. People ________ it every year.
The boy has _______ questions to ask his teacher in every class.
It’s not safe(安全的) for an ________ child to swim in the river.