It is our duty _________our hometown clean and beautiful. We must do something for it.A. to keep B. keeps C. keeping
-- _____________ do you watch TV every day? --- For about an hour.
---- Your English is very good. -----.
-----______ ! Where is my pencil? ----- ________ , I don’t know.
----do you spell ruler? ----R—U—L—E—R, ruler.
---- _______ is my skirt ? ----It’s behind the door .