_______ do you help your mother clean the house? —Once a week. [ ]

Have you decided when to leave for Australia?—Not yet. We _________ set off at the end of this month.

Most students walk or ________ / raId / bikes to school.

There is ________”h” and ________”u” in the word “hour”.

Excuse me. I want to buy some stamps. Where can I find a post office?—I know _______ is not far from here. You can easily find _______.