— It’s a fine day today. How about __________?  — Sounds great!

Although we’ve learned English for years, we have trouble _____ the       foreigners.

John does important research _______ the best ways to help the old.

---Mike’s radio has gone wrong. He will have it ______ tomorrow.---Why not have Aunt Wang ______ it? Nobody can if she can’t.

 Fruit and vegetables are good for us. We need them __________ healthy.