The teacher said that light ________ faster than sound.
.____ you ____ to the park last week?
--_____ will you be back?-- In a week.
It’s polite _____ to your teacher when you meet him at school.
– Where would you like to go on vacation, Lily?– It’s hot here.I’d like to go _______.
– You look rather tired.______ stopping to have a rest?– All right.