Have you finished your work yet?—No，not yet. I think it’ll take ________ minutes.

Mother Teresa devoted her life _______ caring _____ the poor.

Mike. Is that smart phone___________?—- Yes. My mother bought it for me yesterday.

The books are so nice, which one can I take? —Oh, you can take _______ of them. I’ll keep none.

of our classmates are good at basketball.