She can play_______ piano, and she plays it ________.
Dad, will you buy me a new bike? –I don’t know. I’ll have to _________ it.
Have you found the information about famous people you can use for your report?—Not yet. I’ll search after school.
This robot is supposed to save a lot of labor, but it remains a problem if it ______.
The movie is too exciting, so people _____ 60 should not see it.[ ]