--You speak English so well. ______ have you learned English? --For 5 years.

Being heavy is bad for people’s health, I think you’re a little heavy. You should eat ______ meat and _________ vegetables.

The question is so hard. None of them can answer it _________.

Elephants eat________, but they can move _______when necessary.

--How often do you watch TV, Tom? --_______________.