—Why didn't you try your best to get on the bus?—I tried to, but it had started moving ________ I could get on it.
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.
He really likes English and often ______ English after class.
There are ______ students in our school.