Whose backpack is this?— It be Mary’s. She is looking for hers.

When did you staying up so late?—When I entered this school two years ago, where students have too much homework to do.

Rather than ________ on a crowded bus , he always prefers ________ a bicycle.

The car over there isn’t _______.It belongs to ______.

In the United States, Father’s Day falls on ______ third Sunday in _____ June.