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1. I usually go to school ________ foot.

2. I went to school ________ bus yesterday.

Don't laugh ________ others' mistakes.

I couldn't finish the work ________ your help.

Please turn to ________________（第十二页）.

Most children in China go to school at the age of ________.

March ________ is Women's Day.

There are ________ days in a year.

There are ________ months in a year.

Christmas is on December ________ each year.

Thursday is ________ day of the week.