Do you often ride _______ bike to school, Tom?— No. I usually come to school by ______ bus.

In ancient times, dogs were mainly ______helping people hunt( 打猎) .Now they are more useful-they can help the blinds, search for the bad eggs.

Here _____. This is our classroom.

I’m allowed to go out with my friends on Friday nights.— ________________.

This is a ______ map and it didn’t take me much time to come here.