an alien got out ____the ufo and walked ____the street 1.off,on 2.on along 3.of,down 4.in ,in
问题描述：
an alien got out ____the ufo and walked ____the street 1.off,on 2.on along 3.of,down 4.in ,in
答
选3. 句子意思是外星人走出UFO并且沿着街走。 get out of 和walk down 都是固定短语
答
3.of,down
go out of = 走出
walk down the street = 沿街走,沿街散步