—Shall we go out for a walk? —Sorry. I’m too busy to ______-for the moment.
--Is it all right if I use your car ? ----
Our school has developed a learning system students can do a lot of teamwork.
-We’re going camping this afternoon. --Enjoy yourselves! Take a map with you you get lost in the forest.
How much bread is there?-_____________.
Only when it is hungry ______ a human being.