Some of you may have finished unit one. _____ , you can go on to unit two.
-- The classroom looks like a mess!-- Yes, but who left the waste paper ______ around?
-- I think we'll give Bob a ring.-- We ______ . We have been out of touch with him for ages.
Honey, stay outside and ______ a few minutes; then we'll go to church together.
-- Why didn't you go camping with us?-- But I ______ all about it!
-- When do you need to pay the balance? -- ______ December 31.