o, I ________ to ask if I can book a flight ticket to Hainan tomorrow— Sorry, we’ve already sold out.

Thank you so much for the present you sent me.—

Mr Smith became angry with me after I _____made the same mistake in physics class [ ]

iths was busy writing a story, only ______ once in a while to smoke a cigarette.

Recently, many people dare not eat becauseof H7N9 (禽流感).