Have you found your lost dictionary?—-No,I haven’t found_____,but I bought _______this morning.

I would appreciatevery much if you could send me a few copies of the mechanic design of your new model.

There _______always many visitors in Beijing on National Day.

Whose schoolbag is this?—It ___________ be Mary’s. It has her name on it.

,the more quickly he will learn a foreign language.