1、I've eaten nothing.I can't work properly on an empety_____ stomach_____.
2、The pilot starts the engine.Taking_____ off is noisy and a bit faint______.
3、That was stupid______ of me because I just locked the truck and left the key inside.
4、The plane can't land and the passengers are worried about the e______.
二、用所给词的适当形式填空.
1、Tom could'n help laughing_____(laugh) when he heard the news.
2、The old couple were tired but happy after touring_____(tour) around the city.