_________ people were watching the sky, the alien got out of the UFO.
#57263
A
If
B
When
C
Because
D
While
推荐题目
The bus driver always says to us: “Don’t get off ______ the bus stops.”
#55229
A
when
B
while
C
until
D
if
—Will you please give the dictionary to Jane?—Sure. I’ll give it to her she arrives here.
#58333
A
before
B
until
C
because
D
as soon as