Today,computers are really helpful.They________everywhere.
– You seem to know much about the city.– That’s true. I _______ it four times in the last three years.
If I am free, I’d like to spend _________ holiday in the countryside.
Mrs. Wang always asks us to ________ conversations in the English classes.
Would you please drive more ________, David? The train is leaving soon.
After a serious illness, he finally _______ how important his health is.