— Sorry, Tom. I took your book_______ mine by mistake.— It doesn’t matter. Yours looks _______mine.
He wants to join the ________ club.He can ________ chess.
I can ________ Chinese kung fu.
Do you have a pen?I want to ________ a letter.
Ann often helps me ________ math after school.
Beidaihe Kids Summer Camp needs help ________ sports.