—________ we finish the work before class, Jack?—No, we_________ . We can do it after class.

— My sons are not a little restless.— Oh? Boys _______ be boys．

--______do you spell your family name?—C-L-A-R-K,Clark. 

This pair of shoes ______ Li Gang’s ．It’s too big for him ．

—Can you keep a secret?—You ________ worry—I'm not going to mention it to anyone.