I'm amazed to hear from my school teacher again. _______，it is ten years since we met last.

A giant helium(氦) balloon is telling residents of Paris how good or bad the air quality is. When it’s good, the balloon ----measuring 22 meters wide and 32 meters high---shines green. _________, it’s red.

Is that a book in farming?  ________,I want to borrow it.

 --What happened to you on your way back to the hotel last night? --I lost my way in complete darkness and, _________ things worse,it was pouring with rain.      

—I don’t think the company may offer you a good pay.—__________，I won’t take the job.