. I was too excited to fall_______ .I was still_______ until 11 o’clock last night.

the fruit-pickers, several of _______were still university students

It was wrong of you to from all your friends who helped you when you were in trouble．

We have been excavating layers of ashalmost six metres thick, which suggests that they________the fire burning allwinter.

当你帮助别人后，别人对你说＂Thank you.＂时，你应该说 ____________。