—Can you tell me _____when the teacher came into the classroom?—Sorry,I don’t know.
—Would you mind if I open the window? ---_______. We need fresh air.
– Can you tell me how to make fruit salad? --Sure, Please watch carefully and you will see how it ______.
--Are you ________ the dark? --Oh, yes. I always go to sleep with the light on.
-_____ you ______ the magazine from the library yet? -Yes. I _____ it for three days.
– I waited there for an hour, but Jim didn’t______.