–________ you turn down your radio, please? –Yes, I can.

---      your brother swim, John?---No, he       .

 Time ________ heal a broken heart. After five years, Steve seems to have got over the sorrow of losing his son.

 — Isn’t that Ann’s husband over there?  — No, it ________ be him — I’m sure he doesn’t wear glasses.

——Dad, must I finish my homework today?——No, you         . You may do it tomorrow.