I often go out for a walk along the street _____ to the river bank. [ ]

The Greens live _____ that building. They live ______ the sixth floor.

Did any signs come up before the earthquake? —YesUnusual things all those daysFor example, a number of animals got out their homes

It is reportedthat the floods have left about _________ people homeless.

Who’s your science teacher this term?–Mr. Wang. _______ is a good teacher.