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

What _____ Yu Ping usually _____ in her free time—She usually goes to the library.

The little boy insisted that he______ nothing wrong and that he ______.

The stranger to walk into the building in the early morning was probably a salesman.

Were they late for the play? — Not reallyAs soon as they ____ themselves in their seats in the theater, the curtain ____