—May I ask you _____ the writer? —Sorry. I don’t know him. You can ask Sam ______ help.
When winter(冬天) comes, the days get_______.
We __________ used computers many years ago, but now they’re everywhere.
Simon watches TV three_______ four________ a week.
Thanks for __________ my grandpa when I was away.
Eating a lot of vegetables __________ good __________ our health.