-How tired we are!-Yes. ______we have math tests, _______we have physics tests. So many tests.
Sam has a bike. He ______ it to school every day.
For some students, it’s difficult ______ school.
—______ is it from your school to the train station? —Five kilometers.
My English teacher is very good. She is like my mother ______ me.
Peter usually goes to school by ______ bus.