Lots of (a ) have worked on the space station.括号里填什么?

Lots of (a ) have worked on the space station.括号里填什么? LOTS OF A____ HAVE WORKED ON THE SPACE STATION.（根据首字母填空） 英语翻译Think of space,perhaps a permanent station on the moon w There ( )a pair of shoes on the desk.括号里填什么? in the space station还是on the space station on the space station 还是 in the space station呢? 是 on the space station 还是at space station work on a space station是什么意思 英语“on a space station”是什么意思 There (.) a lot of people on the beach 括号里填be动词 here is a piece of ( )you can write words on it 括号里填什么 ()the ears on the donkey.括号里填什么?