There is “u” and “s” in the word “useful”.

How do you feel about soap operas— . But my mother likes them.

It’s a pity that Andrew didn’t want to go to the conference.—________ willing to go，we could have paid all his expenses.

Tom’s father____ to London last month. He ______ there three times.

________ call me Mimi! It’s my cat’s name.