是What on earth are they looking at?还是What on earth they are

是What on earth are they looking at?还是What on earth they are what are there on earth what on earth are you? what are the smallest birds on earth 91618：what on earth are the points that interviewers should What on earth are you expecting ?什么意思 英语翻译What on earth. what on earth! what on the earth? WHAT ON EARTH怎么样 what on earth? 2.The things on the moon are much_than they are on the earth