these activities might cause laughter ______respect, in reality they require an enormous amount of strength

_______ you go, _______ you should keep in mind is that you are a Chinese.

It’s neither aliens nor a rare disease ________ will threaten the human race in the future, but climate change.

The moment I got home, I found I ________ my jacket on the playground.(2008·陕西)

_____ in the queue for half an hour, the old man suddenly realized he had left the money in the car. [ ]